table 2.6 shows the average hourly compensation of production workers in manufacturing for several years. let x be the number of years since 1970, so that x

The correct static test is [tex]$z=\frac{0.30-0.25}{\sqrt{\frac{0.30(0.70)}{80}}}$[/tex]

Number of residents in a certain area with wingspan measurements larger than 10 inches = =30% = 0.30

[tex]$=p_o=30 \%=0.30$[/tex]

20 of the 80 bats in a n=80 random sample from outside the area have wingspan measurements larger than 10 inches to ascertain whether there is any variation in the proportion of bats with a wing span more than 10 inches that live outside the region and those that do.

In response to the query;

an investigation using a one-sample z-test,

The following definition applies to the hypothesis:

[tex]$p=\frac{x}{n}$[/tex]

[tex]$p=\frac{20}{80}$[/tex]

H0: The fraction of bats with a wingspan larger than 10 inches that reside outside of the region and those that do so are equal.

= p - p₀ = 0.

Ha! There is a discrepancy between the percentage of bats with a wingspan larger than 10 inches that reside outside of the region and those that do.

= p - p₀ ≠ 0.

n = 80 , X = 20 , p₀ = 0.30

The analysis will be conducted using the z-test for a single proportion.

Following is a sample of the percentage of bats residing outside the area whose wingspan is larger than 10 inches:

The test statistic is,

[tex]& z=\frac{p-p_0}{\sqrt{\frac{p_0\left(1-p_0\right)}{n}}} \\[/tex]

[tex]& z=\frac{0.25-0.30}{\sqrt{\frac{0.30(1-0.30)}{80}}}[/tex]

The correct test statistic is

[tex]$=\frac{0.30-0.25}{\sqrt{\frac{0.30 \times 0.70)}{80}}}$[/tex]

To learn more about  static test refer to:

https://brainly.com/question/29337608

#SPJ4

The x-intercept of the line is (-1, 0). And the y-intercept of the line is not there.

A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.

The linear equation is given as,

y = mx + c

Where m is the slope of the line and c is the y-intercept of the line.

From the graph, the line is parallel to the y-axis, then the equation of the line parallel to the y-axis will be given as,

x = c

From the equation, the line is passing through (-1, 0), then we have

- 1 = c

c = - 1

Then the equation of the line is x = -1. Then the x-intercept of the line is (-1, 0). And the y-intercept of the line is not there.

More about the linear equation link is given below.

https://brainly.com/question/11897796

#SPJ1

The two cuts that are being roasted for each time-temperature combination are an example of replication.

Option (c) is correct.

What is temperature?

Temperature is a measure of the average thermal energy of the particles in a substance. It is a scalar quantity, meaning it has only a magnitude and not a direction. The most commonly used unit of temperature measurement is the degree Celsius (°C) or the degree Fahrenheit (°F), but it can also be measured in Kelvin (K) in scientific and engineering applications.

Given options are:

(a) The two cuts that are being roasted for each time-temperature combination are an example of conduction

(b) The two cuts that are being roasted for each time-temperature combination are an example of convection

(c) The two cuts that are being roasted for each time-temperature combination are an example of replication

(d) None of the above

(c) The two cuts that are being roasted for each time-temperature combination are an example of replication.

In the question it is given that  From 10 identical cuts of lamb, 2 are randomly selected to roast using each of the time-temperature combinations in the same oven. Here it is an act of copying the exact sahpe size of the lamb in all cuts, which is nothing but replication. Moreover, this replication can help in proper comparision.

Hence, The two cuts that are being roasted for each time-temperature combination are an example of replication.

Option (c) is correct.

To learn more about the temperature, visit:

https://brainly.com/question/14054025

#SPJ4

if b is the span of the given vectors, so we can express b as the linear combination of the other given two vector.

given that,

[tex]a_{1} =\left[\begin{array}{ccc}-1&\\3&\\-1\end{array}\right] , a_{2} =\left[\begin{array}{ccc}-2\\-3\\6\end{array}\right] , b=\left[\begin{array}{ccc}-6\\9\\2\end{array}\right] \\\\\\\\\\\\\\\\\\\\\\\\[/tex]

We have determined that b is span of given vector a1 and a2.

we can write.   [tex]a_{1} =(-1,-3,-1) ,a_{2}=(-2,-3,6) , b=(-6,9,2)[/tex] .

A vector is a quantity that has magnitude and direction.

if x,y,z...., v are vectors and a,b,c....k are scalars then the linear combination is ax+by+cz+......+kv  

The set of linear combinations is called span for set of vectors.

So, b is span of given vector.

[tex]b=(c)a_{1} +(d)a_{2}[/tex]   ...... equation (A)

where c and d are scalars.

Now,

[tex](-6,9,2)=c(-1,3,-1)+d(-2,-3,6)\\(-6,9,2)=(-c,3c,-c)+(-2d,-3d,6d)\\(-6,9,2)=(-c-2d,3c-3d,-c+6d)\\[/tex]

equating the equations,

[tex]-c-2d=-6\\3c-3d=9\\-c+6d=2\\[/tex]

now we shall solve the above linear equations.[tex]subtract \\-c-2d-(-c+6d) = -6-2\\-8d=-8\\d=1\\now, \-c=-6+2d\\c=6-2=4\\c=4[/tex]

So, value of scalars c, d satisfied equation A,

thus, b is span of given vector a1 and a2.

The complete question is.

Determine if b is in the span of the other given vectors. If so, write b as a linear combination of the other vectors. a1=[-1 3 -1], a2=[-2 -3 6]= [-6 9 2]

learn more about vector.

https://brainly.com/question/29740341

#SPJ4

Answer:

216

Step-by-step explanation:

2017-2007=10

8*10=80

80% of 120= 96

120+96=216

According to the solving the exponential form of the given number is as follows:

= 6² × 7⁴

= (-104)³

Bases and powers are employed in the exponential form to write numbers. It informs us of the amount of times we must actually multiply a number in order to obtain the answer. When we write the number 125 as 53, for instance, we can see that it is the third power of 5, or the number 125, which looks to be a typical three-digit number when observed.

When a single integer is multiplied by itself a certain number of times, x, the equation y takes on the base component b to the power of x, which is the quantity being multiplied, and is known as the exponential form.

The exponential form of the given number is :

= 6х6х7х7x7x7

= 6² × 7⁴

The exponential form of the given number is :

= -104 x -104 x -104

= (-104)³

To know more about exponential form visit:

https://brainly.com/question/30278502

#SPJ1

The surface area of the hexagonal pyramid is S = 575.9 inches²

The total surface area is the summation of the areas of the base and the three other sides. A = B + ( 1/2 ) ( P x h ), where B is the area of the base of the pyramid, P is the perimeter of the base, and h is the slant height of the pyramid

Surface Area of Pyramid = B + ( 1/2 ) ( P x h )

Given data ,

Let the surface area of the hexagonal pyramid be S

Now , the equation will be

The base of the hexagonal pyramid a = 10 inches

The height of the lateral face h = 6 inches

The base area of the pyramid = ( 3√3 / 2 )a²

The lateral surface area of the pyramid = 3a √ ( ( 3a²/4 ) + h² )

So , The total surface area of hexagonal pyramid is S

S = ( 3√3 / 2 )a² + 3a √ ( ( 3a²/4 ) + h² )

Substituting the values in the equation , we get

The base area of the pyramid = 259.8 inches²

The lateral surface area of the pyramid = 3 ( 10 ) √ ( 3 ( 100/4 ) + 36 )

On simplifying the equation , we get

The lateral surface area of the pyramid = 316.1 inches²

Total surface area of hexagonal pyramid S = 259.8 inches² + 316.1 inches²

The total surface area of hexagonal pyramid S = 575.9 inches²

Hence , the surface area of the pyramid is 575.9 inches²

To learn more about surface area of pyramid click :

https://brainly.com/question/15050758

#SPJ1

Answer:

[tex]\frac{7d}{15}[/tex]

Step-by-step explanation:

The amount in the account after 6 years if the account is compounded semiannually, quarterly, or monthly is 6724.4,  6736.7, and 6664.9.

What is compound interest?

Compound interest, also known as interest on principal and interest, is the practice of adding interest to the principal amount of a loan or deposit.

Here, we have

Given: A principal of $5000 is invested in an account paying an annual rate of 7%.

We have to find the amount in the account after 6 years if the account is compounded semiannually, quarterly, or monthly.

A) Compounded semi-annually:

 = 5000*(1 + 0.05/2)^(2*6) = 6724.4

B) Compounded quarterly:

 = 5000*(1 + 0.05/4)^(4*6) = 6736.7

C) Compounded monthly:

 = 5000*(1 + 0.05/12)^(12*6) = 6664.9

Hence, the amount in the account after 6 years if the account is compounded semiannually, quarterly, or monthly is 6724.4,  6736.7, and 6664.9.

To learn more about the compound interest the given link

https://brainly.com/question/24274034

#SPJ1

Answer:

sum of their present ages is 5 + 20 = 25 years.

Step-by-step explanation:

The father's current age is 4x (because he is four times as old as his son)

Five years ago, the father's age was (4x - 5) and the son's age was (x - 5)

Ten years from now, the father's age will be (4x + 10) and the son's age will be (x + 10)

From the second statement, we know that:

(4x - 5) = 1.5(x - 5)

And from the third statement, we know that:

(4x + 10) = 1.5(x + 10)

We can solve these equations simultaneously to find the present ages of the father and the son.

Solving the first equation:

4x - 5 = 1.5x - 7.5

2.5x = 12.5

x = 5

So the son's current age is 5 years old.

The father's current age is 4x = 4(5) = 20 years old.

So, the sum of their present ages is 5 + 20 = 25 years.

The principal amount that Jenna put in the bank is $625.

Borrowers must pay lenders simple interest as a fee in exchange for a loan. Compound interest is excluded from the calculation and just the original principal is used. Simple interest applies to all loans, not just specific ones. Additionally, it refers to the kind of interest that banks give their customers on their savings accounts.

Given interest earned = $125

time = 4 years

rate = 5%

let the principal be p

this is the case of simple interest,

SI = (p*r*t)/100

substitute the values

125 (p* 5 * 4)/100

125 x 100 = p x 20

p = 12500/20

p = $625

Hence principal amount is $625.

learn more about simple interests;

https://brainly.com/question/25845758

#SPJ1

If Jennifer wants to use the money to buy a new bicycle in 2 years, she can spend (future value) $388.54 on the bike as the account earns 13% interest, compounded monthly.

Compound interest is a system of interest computation where interest accumulates on the principal and previously accumulated interests.

Compounding the present value means adding interest to the principal amount when calculating subsequent interests.

N (# of periods) = 24 months (2 years x 12)

I/Y (Interest per year) = 13%

PV (Present Value) = $300

PMT (Periodic Payment) = $0

Results:

Future Value (F) = $388.54

Total Interest = $88.54

Thus, with a deposit of $300, Jennifer can spend $388.54 after earning 13% monthly compounded interest.

Learn more about compound interests at https://brainly.com/question/24274034

#SPJ1

The missing length is given as follows:

LN = 44.

The theorem used to solve this problem is given as follows:

A line parallel to one side of a triangle divides the other two proportionately.

The parallel lines for this triangle are given as follows:

VU and LM.

Hence the proportional relationship regarding the remaining side lengths is given as follows:

x/24 = 11/8

Applying cross multiplication, we have that:

8x = 24 x 11

x = 3 x 11

x = 33.

Hence the missing length is given as follows:

LN = 33 + 11

LN = 44.

More can be learned about similar triangles at https://brainly.com/question/30233764

#SPJ1

The sampling distribution of the sample mean based on samples of size 2 for a population can be approximated by a normal distribution.

The histogram of the sampling distribution would therefore look like a bell-shaped curve. The mean of the sampling distribution is equal to the population mean, and the standard deviation of the sampling distribution is equal to the population standard deviation divided by the square root of the sample size (in this case, 2).

Therefore, the formula for the sampling distribution of the sample mean for a population of size 2 is:

Mean = Population Mean

Standard Deviation = Population Standard Deviation / √2

The histogram of the sampling distribution would look like a bell-shaped curve with the mean and standard deviation determined by the formula above.

Therefore, the histogram most likely representing the sampling distribution of the sample mean based on samples of size 2 for the population is a bell-shaped curve with the mean and standard deviation determined by the formula above.

Learn more about sampling distribution here:

https://brainly.com/question/29375938

#SPJ4

The standard deviation is 4.0, while mean is 10.2.

Data dispersion in regard to the mean is quantified by a standard deviation, or. Data are said to be more closely grouped around the mean when the standard deviation is low and more dispersed when the standard deviation is high.

Mean = 10.2

The standard deviation is 4.0.

Age in the mean is the average age.

Mean = (16 + 10 + 5 + 7 + 13)/5

Mean = 51/5 = 10.2

The variance's square root will reveal the standard deviation.

(16 - 10.2) + (10 -10.2) + (5-10.2) + (7-10.2)+( 13-10.2) ( 13-10.2)

5.8 + 0.2 -5.2 - 3.2 + 2.8

each number into squares

33.64 + 0.04 + 27.04 + 10.24 + 7.84

Variation: 78.8/5 = 15.76

Standard deviation = 3.969 = 4.0.

To learn more about standard deviation refer to:

brainly.com/question/24298037

#SPJ1

The complete question is,

16, 10, 5, 7, 13

What is the porcupines' typical age based on your sample? Where can I find the standard deviation? in a circle tenths of a percent, closest.

Answer:

The student will be equally likely to join the Zoology Club or Robotics Club because P(Robotics) = P(Zoology). 2nd Option B

Step-by-step explanation: I saw it in another one so id like to help

Answer:Use a graphing utility to graph the function and approximate (to two decimal places) any relative minima or maxima. (If an answer does not exist, enter DNE.)

f

(

x

)

=

x

3

−

3

x

2

−

x

+

3

relative minimum

(

x

,

y

)

=

c

Step-by-step explanation:

Answer: The commutative property is applied when finding the GCF by  taking the factor that has more than 1 factor other than itself(composite) and multiply them until you can no longer multiply. You then take the factors that are in common and multiply them.

Step-by-step explanation: my teacher made me use this way.

The plot inverse function g^-1(x) is attached below.

What is inverse function?

A function that returns the initial value for which a function has produced output is called an inverse function. If f(x) is a function that produces the value y, then f-1(y), which is the inverse function of y, will produce the value x. Inverse and reciprocal functions should not be confused. The output's original value is returned by the function's inverse, represented by the symbol f-1 (x). While the reciprocal of a function is represented by 1/f(x) or f(x)-1

Those that do are referred to as invertible. For a function f: X Y to have an inverse, it must possess the characteristic that there is exactly one x in X such that f(x) = y for every y in Y. This characteristic guarantees the existence of a function g: Y X that has the required connection to f.

X           3    4    6   10   18

g^-1(x)    0   1/2   1    3/2   2

In the given table x and g^-1(x) is shown.

Hence, THe plot inverse function g^-1(x) is attached below.

Learn more about inverse function, by the following link.

https://brainly.com/question/11735394

#SPJ1

Answer:

12x^4y^7

Step-by-step explanation:

base(b)=8x^3y^5

height(h) =3xy^2

Area= (b x h)/2 =12x^4y^7

Answer:

[tex]A = 12x^4y^7[/tex]

Step-by-step explanation:

The formula for the area of a triangle is:

[tex]A = \dfrac{1}{2}bh[/tex]

where [tex]b[/tex] is the length of the triangle's base and [tex]h[/tex] is the length of the triangle's height.

In this problem, we are given the length of the base of the triangle as [tex]8x^3y^5[/tex] and the length of the height of the triangle as [tex]3xy^2[/tex].

Thus, the area of the given triangle is:

[tex]A = \dfrac{1}{2} \cdot 8x^3y^5 \cdot 3xy^2[/tex]

We can simplify this by combining like terms and using the exponent addition rule ([tex]x^a \cdot x^b = x^{a+b}[/tex]).

[tex]A =\left(\dfrac{1}{2} \cdot 8 \cdot 3 \right)(x^3 \cdot x)(y^5 \cdot y^2)[/tex]

[tex]A = (4 \cdot 3)(x^{3 + 1})(y^{5+2})[/tex]

[tex]A = 12x^4y^7[/tex]

For each month, you will pay $700 in interest.

What is simple interest?

Simple interest is a method of calculating the interest on a loan or investment where the interest is determined based on the initial principal (the original amount of the loan or investment) and a fixed interest rate. The interest is calculated based on the amount of time the principal is invested or borrowed.

The formula for simple interest is:

I = Prt

Where:

I is the interest

P is the principal

r is the annual interest rate (expressed as a decimal)

t is the time (in years)

For example, if you have a home mortgage of $140,000 with a fixed APR of 6% for 30 years, the simple interest calculation for each month will be:

I = (140,000 x 0.06) / 12 = $700

Hence, for each month, you will pay $700 in interest.

To learn more about the simple interest, visit:

https://brainly.com/question/25793394

#SPJ1

The trip would have taken 8.89 hours instead of 8 hours.

Distance traveled can be calculated by multiplying the speed at which the object is traveling by the amount of time the object has been in motion.

For example, if a car is traveling at 60 miles per hour for two hours, the distance traveled would be 120 miles.

To calculate distance more accurately, you can use the formula d = rt, where d is the distance, r is the rate of speed, and t is the time in which the object has been in motion.

It is important to note that this formula assumes a constant speed throughout the duration of the journey.

It is also important to remember that the unit of measurement used for both the speed and the time must be the same. Therefore, if the speed is in miles per hour, the time must also be in hours.

In order to calculate this, we need to first calculate the time it took for the family to travel the first 600km at 90km/h. This can be calculated using the formula:

Time = Distance / Speed

So, the time it took for the family to travel the first 600km is:

Time = 600km / 90km/h = 6.67 hours

Then, we can calculate the time it would have taken for the family to travel 800km at 90km/h using the same formula:

Time = 800km / 90km/h = 8.89 hours

Therefore, the trip would have taken 8.89 hours, which is 0.89 hours longer than the original trip which took 8 hours.

To learn more about distance refer to:

brainly.com/question/26046491

#SPJ1

Answer:

Step-by-step explanation:

d = 6 would not be a solution to the inequality below because it would make the inequality untrue! Plugging in, we get:

13 < d + 3

13 < 6 + 3
13 < 9
We know that 9 is not a solution to the inequality!

To solve, we isolate the d, and from there we can find all values that are a solution to the inequality to the solution!

[tex]13 < d + 3\\\\13 - 3 < d\\\\10 < d[/tex]

Thus, one can say that the solutions to the inequality are: [R, d > 10]!

Answer:

see below

Step-by-step explanation:

3²-5 = -5x-3

9-5 =- 5x-3

-5x = 7

so x= -7/5

Answer:

y = [tex]-\frac{3}{4}[/tex] x

Step-by-step explanation:

y = mx + b , where "m" is a slope and "b" is an y-intercept.

If a║b ⇒ [tex]m_{a}[/tex] = [tex]m_{b}[/tex] and [tex]b_{a}[/tex] ≠ [tex]b_{b}[/tex]

( [tex]x_{1}[/tex] , [tex]y_{1}[/tex] )

y - [tex]y_{1}[/tex] = m( x - [tex]x_{1}[/tex] )

~~~~~~~~~~~~

y = [tex]-\frac{3}{4}[/tex] x + 1

( 8 , - 6 )

y - ( - 6 ) = [tex]-\frac{3}{4}[/tex] ( x - 8 )

y + 6 = [tex]-\frac{3}{4}[/tex] x + 6

y = [tex]-\frac{3}{4}[/tex] x

According to the given data, the firm in question must be a price-taker, which is a perfectly competitive firm.

A price-taker is basically an individual or a particular company that must accept prices that are prevailing in a market and lacks the market share to be able to influence the market price on its own. All the economic participants can be considered to be price-takers in a market consisting of perfect competition.

In the given data set, the marginal revenue is constant which is very typical for competitive firms. This happens because the market decides the optimal price level and companies do not have much say over the price. This is a way by which they can maximize profits.

To know more about price-taker here

https://brainly.com/question/29218058

#SPJ4

This means E is the same fraction of the b metres above the floor, so is ab/a+b metres above the floor.

What is equal angles ?

Equal angles can be defined as the angles which are equal .

Given ,

The picture shows two ladders propped against facing walls. The end of the first ladder is 5m above the base of the second wall. The second

ladder is 5m above the base of the first wall.

the angles ∠BAD and ∠ADC are alternate angles, and therefore equal. Likewise, angles ∠ABC and BCD are also alternate and therefore equal.

∠BEA and ∠CED are opposite, which means that they are equal. You can see these equal angles in the diagram on the right.

This means that the triangles ABE and DCE have the same angles as each other, and are therefore similar.

so,

This means:

AE/ED=AB/DC=5m/10m=1/2

Therefore AE=1/3 AD.

This means E is 1/3 of the way up from the floor to D, so is at a height of

This means E is 13 of the way up from the floor to D, so is at a height of 10m/ 3=3 1/3m

If instead B is a metres above the floor, then:

AE/ED=AB/DC=a/10

Therefore AE=a/10+a AD.

This means E is the same fraction of the 10m above the floor, so is 10a/10+a metres above the floor.

If instead D is b metres above the floor, then:

AE/ED=AB/DC=a/b

Therefore AE=a/a+b AD.

This means E is the same fraction of the b metres above the floor, so is ab/a+b metres above the floor.

Therefore, This means E is the same fraction of the b metres above the floor, so is ab/a+b metres above the floor.

To learn more about Equal angles from the given link.

https://brainly.com/question/3946145

#SPJ1

Selecting elements from an ordered sampling frame is a statistical approach used in survey methodology known as systematic sampling and in the given situation (D) systematic sampling would be the best.

Systematic sampling is a statistical technique used in survey methodology that involves choosing components from an ordered sampling frame.

An equiprobability approach is the most typical type of systematic sampling.

This method treats the list's evolution in a cyclical manner, returning to the top after it has been completed.

The sampling process begins with the random selection of one element from the list, followed by the selection of every kth element in the frame, where k is the sampling interval, also known as the skip, and is equal to:
k = N/n.

Therefore, in the given situation (D) systematic sampling would be the best.

Know more about a Systematic sample here:

https://brainly.com/question/28505229

#SPJ4

Answer:

Step-by-step explanation:

Answer:

244.5

Step-by-step explanation:

Use A Budgeting Calc This Anwser Is Correct

If the sum of the squares on its other two sides equals the square of its greatest side.

Given:

AB = 9 cm CB = 40 cm AC = 41 cm

The Pythagorean Theorem states that

If the largest side's square is equal to the sum of the squares on the other two sides, the triangle will have a right angle.

AB = 9 cm CB = 40 cm AC = 41 cm

The Pythagorean Theorem states that

AC 2 =BC² +AB ²

41²=40²+9²

41 ²=40 ² +9 ²

1681 = 1600 + 81

1681 = 1681

Know more about Triangle

https://brainly.com/question/12958147

#SPJ4

The question is incomplete

Show that the triangle ABC is a right-angled triangle; if:

AB = 9 cm, BC = 40 cm, and AC = 41 cm.