The sample size 350 should be taken to provide a 95% confidence interval with a margin of error of 0.05.
According to the statement
We have to find that the sample should be taken to provide a confidence interval with a margin of error.
For this purpose, we know that the
The confidence interval is the probability that a population parameter will fall between a set of values for a certain proportion of times.
And
With the given information
In the survey as
p* = 0.35
confidence interval=95%
E=margin of error = 0.05
and then
[tex]a=(\frac{z}{E} )^{2} *pq[/tex]
and substitute the values
[tex]a=(\frac{1.96}{0.05} )^{2} *0.35*0.65[/tex]
then the sample is 350.
So, The sample size 350 should be taken to provide a 95% confidence interval with a margin of error of 0.05.
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if i get a 100 you get brainliest and a thanks, please help
Please help I don’t understand this
Answer: answer is -1
A round fountain has a radius of 86cm. What is the circumstance of the fountain, in meters?
Answer:
The circumference of any circle is 2πr, where r is the radius.
Step-by-step explanation:
HELP ASAP : -7/8= -1/6 - 3/10x enter your question as a mixed number in the simplest form
Answer:
125/36 = 3 17/36
Step-by-step explanation:
Find the LCM of 8a²y²z and 56ayz³
Answer: 6
Step-by-step explanation:
6xy=54
answer and working please
Answer: y=0 x =9/y
Step-by-step explanation:
packages of sugar bags for sweeter sugar inc. have an average weight of 16 ounces and a standard deviation of 0.2 ounces. the weights of the sugar bags are normally distributed. what is the probability that 16 randomly selected packages will have a sample mean weight in excess of 16.075 ounces?
0.0668 is the probability that 16 randomly selected packages will have a sample mean weight in excess of 16.075 ounces.
What is probability?Simply put, probability is the likelihood that something will occur. When we don't know how an event will turn out, we can discuss the likelihood or likelihood of various outcomes. Statistics is the study of events that follow a probability distribution. It is based on the likelihood that something will occur. The justification for probability serves as the main foundation for theoretical probability. For instance, the theoretical chance of getting a head when tossing a coin is 12. The probability is calculated by dividing the total number of possible outcomes by the number of possible ways the event could occur. Probability and odds are two distinct ideas. Odds are calculated by dividing the likelihood of an event by the likelihood that it won't.
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For questions 18-20, if l Il m, find the values of x and y.
Step-by-step explanation:
18x + 20y= 38
38xy = 38
xy = 38/38
where x and y = 1
Please help!! (Click on the pic!)
Answer:
[tex]160\sqrt{3}[/tex]
Step-by-step explanation:
Step 1: Know what the question is asking
product ⇒ means to multiplyStep 2: Set up the problem
[tex](8\sqrt{8} )(5\sqrt{24} )[/tex]*Note: Multiplication is commutative ⇒ order doesn't matter, terms can be rearranged and the answer remains the same[tex]8*\sqrt{8} *5*\sqrt{24}[/tex][tex]8*5*\sqrt{8} *\sqrt{24}[/tex][tex]40*\sqrt{8} *\sqrt{24}[/tex]*Note: It is easier to further simplify by simplifying the square roots before multiplying them together.[tex]40*\sqrt{8} *\sqrt{24}[/tex][tex]40*\sqrt{4} *\sqrt{2} *\sqrt{4} *\sqrt{6}[/tex][tex]40*2*\sqrt{2} *2*\sqrt{6}[/tex][tex]40*2*2*\sqrt{2} *\sqrt{6}[/tex][tex]40*4*\sqrt{2} *\sqrt{6}[/tex][tex]80*\sqrt{12}[/tex][tex]80*\sqrt{4} *\sqrt{3}[/tex][tex]80*2*\sqrt{3}[/tex][tex]160\sqrt{3}[/tex](algebra)
Jane and Nina live 480 miles apart. Wanting to surprise each other, they happened to start driving at the same time, and they met 3 hours later. If Nina’s speed was 10 mph faster than Jane’s speed, what was Jane’s speed?
a) 70 mph
b) 75 mph
c) 80 mph
d) 85 mph
e) 90 mph
So, I’m pretty sure the equation will look something like this
10x + 10(x-4) = 1,000
But don’t quote me on that.
Which expression is equal to (8-3i) - (6 + i)?
14-2i
14-4i
2-2i
2-4i
Answer:
2-4i
Step-by-step explanation:
(8-3i)-(6+i)
distribute right side: 8-3i-6-i
8-6: 2-3i-i
So 2-4i
Answer:
2 - 4i
Step-by-step explanation:
Given expression:
[tex](8 - 3i) - (6 + i)[/tex]
Apply the distributive law: -(a + b) = -a - b
[tex]\implies 8 - 3i - 6 -i[/tex]
Collect the real part and imaginary part of the complex number:
[tex]\implies 8 -6- 3i -i[/tex]
Simplify:
[tex]\implies 2-4i[/tex]
A cyclist rides at a constant speed of 15 miles per hour. At this speed, about how long would it take the cyclist to ride from Garden City to Dodge City, Kansas?
Answer: 5.61333333 h
If the length between Garden city to dodge city is 84.2km the answer would be 5.61333333 hours [non-terminating decimal]
Step-by-step explanation:
So ummm, i dunno if the answer is right but yeahh
1h = 15 miles
Distance between GC AND DC = 84.2
84.2 * 15 = 5.6133333
For science class, Joan watches a bird as it moves up
and down in a tree over time. You could make a
graph to represent the relationship between the
bird's height off the ground and time. If you made a
graph, what variable would you put on each axis?
Explain your answers.
Independent (x-axis) variable:
Dependent (y-axis) variable:
1
Answer:
Step-by-step explanation:
Evaluate the expression when c= 1/4 and d= 2/4. 3 (1/4 + c) + 2d
The answer of above expression is
5/2
What is an expression?
Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given,
c=1 / 4 and d=2/4
put the value of c and d in above expression 3(1/4 + c) +2d
3(1/4 + 1/4 ) +2(2/4)
3(2/4) + 1
3(1/2) + 1
(3+2)/2
5/25
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The position, d, in metres of an object in motion as it travels is given by:
d=(t+1)(t + 0.5)
t is the time in seconds.
this is an equation of motion.
by looking at it, we can learn about how the object started moving.
first, expand the brackets.
(answer here which i don't know and i'm confused about)
the initial velocity is the coefficient of the t term.
what is the initial velocity?
(answer here which i don't know and i'm confused about)
Answer:
i need help in german its really inportain
What is the solution to –2|2.2x – 3.3| = –6.6?
x = –3
x = 3
x = –3 or x = 0
x = 0 or x = 3
Answer:
D
Step-by-step explanation:
9 7 59 families are asked whether they have a cat (C) or a dog (D). 26 only have a cat. 14 only have a dog. 11 have both a cat and a dog. (a) Show this information on the Venn diagram. ● ● E C D (b) (i) How many of the families do not have a cat or a dog? (b)(i) D (ii) Write your answer in the correct place on the Venn diagram. (c) One of the families is chosen at random. Write down the probability that they have a dog.
8 families do not have cat or dog. And the probability of a family having a dog is 0.42
Here Given that,
We have total 59 families.
26 only have cat.
14 only have a dog.
And 11 have both cat and a dog
Now, we will show this information on Venn diagram
for Venn diagram see the attachment.
Now, we can say that 26+14+11=51 families have pets at home.
So, we will find out that how many families do not have cat or dog
So,
we have 59 total families and from 59 families 51 have cat or a dog or both at home.
So,
Families do not have cat or dog = 59-51
Families do not have cat or dog = 8
therefore,
8 families do not have a cat or a dog.
Now, we will choose one family and find out the probability of that family having a dog.
So, we have 59 total families and out of 59 families 14+11= 25 families have a dog at home.
So,
The probability of a family having a dog =(families that have a dog)/(total families)
The probability of a family having a dog =25/59
The probability of a family having a dog =0.42
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Lacy uses 1 1/2 cups of flour and 1/2 cup of applesauce for one batch of muffins. She makes 2 1/2 batches of muffins. How many
cups of flour does Lacy use in all?
you randomly select one card from a standard deck of 52 playing cards find the probability of selecting the six of spades or the nine of clubs
There are 52 cards in the deck.
Picking the 6 of spades or 9 of clubs are two of the possible cards you could pick.
Your probability is 2/52 or 1/26 or 3.8461538461538%.
factor -2.8 out of -16.8m - 11.2
Answer:
I would likely consider the answer is 15.68(3m+2)
But I need more info about the question if so.
Find the gradient of the line segment between the points (-8,6) and (-10,14).
Answer:
-4
Step-by-step explanation:
gradient = (y_2 - y_1)/(x_2 - x_1)
gradient = (14 - 6)/(-10 - (-8)) = 8/(-2) = -4
Jennine estimates that each step she takes is 18" long and that she takes 1550 steps
per block. How many blocks must she walk if she wants to walk 5 miles?
Answer: Jennine must walk 11.36 blocks.
Step-by-step explanation:
Since each step is 18" long and she takes 1550 steps per block, a block must equal to 1550*18", or 27,900".
27,900" is roughly 0.44 miles.
Therefore 5mi. /0.44mi. = ~11.36 blocks
Graph the equation using the point and the slope.
y-5=1/3(x-1)
Easier to have it in the form
y=mx+c
y =x/3 + 14/3
Unfortunately not whole numbers so it won't go perfect through the edges of the boxes
Then you just make some x and y values yourself
Good starting point is 0 for both
ie when x is 0 then y =14/3
when y = 0 then x = -14
Which is off the graph in this case.
But using that idea if you pick an x or y value yourself you should be able to calculate its corresponding value.
You technically only need 2 sets of coordinates as it is a straight line but if you calculate more you can guarantee your line is correct
you are grilling burgers for a party that will have 120 guests. you believe that a guest might need 0, 1, or 2 burgers with probabilities 0.2, 0.7, and 0.1, respectively. you assume that the number of burgers each guest needs is independent from other guests. how many burgers should you make so that you are 95% sure there will be enough?
118 lies in this interval , so that i should make 118 burgers with 95% sure .
What is statistics ?Statistics, originally "description of states, countries") is the field dealing with the collection, organization, analysis, interpretation and presentation of data. When applying statistics to scientific, industrial, or social problems, it is common to start with a statistical population or model under study. A population can be various groups of people or things such as: For example, "everyone living in that country" or "all atoms that make up a crystal". Statistics deals with all aspects of data, including the planning of data collection with a view to designing surveys and experiments.
Calculationthe calculation part has been attached below as it was difficult to write that here
∴ 118 lies in this interval , so that i should make 118 burgers with 95% sure
108 also lies in the interval but it is just expected value , if we think about the whole interval answer should be 118 .
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Rachel paid 46 in tax for the money he earned a a camp counelor. How much money did rachel earn
Rachel earned an amount of $ 920
Given in the question,
5% × n = $46
5/100 × n = $46
0.05 × n =$46
0.05/0.05 × n = 46/0.05
Hence the amount is n = $920
Income that is earned comes under total earnings after taxes are deducted which one has already paid. Some of the income which is earned can include union strike benefits, specific retirement pensions, and long-term disability benefits. An expense that is removed or subtracted from the income of the person who is paying the taxes in order to lower the income which is earned by the person so that it is subjected to lower tax subtraction is known as deduction.
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A video treating company offers two monthly plans. Plan A: 3$ per video viewed, plus a flat rate of 8$ per month.
Plan B: 5$ per video viewed and no additional flat rate. Write an inequality to determine when the cost of viewing n videos using Plan A is less then the cost of viewing n videos using plan B.
Inequality:
Plan A is less expensive when:
The inequality to determine when the cost of viewing n videos using
plan A is less than the cost of viewing n videos using plan B.
8 + 3n < 5n
Plan A is less expensive when n is greater than 2.
What is inequality?It shows a relationship between two numbers or two expressions.
There are commonly used four inequalities:
Less than = <
Greater than = >
Less than and equal = ≤
Greater than and equal = ≥
We have,
Two monthly plans:
Plan A:
Cost per video = $3
Flat rate per month = $8
Plan B:
Cost per view = $5
Flat rate = zero
The inequality to determine when the cost of viewing n videos using
plan A is less than the cost of viewing n videos using plan B.
8 + 3n < 5n
Solving for n.
8 < 5n - 3n
8 < 2n
8/4 < n
n > 2
This means when n is greater than 2 we get,
The cost of viewing n videos using plan A is less than the cost of viewing n videos using plan B.
Thus,
The inequality to determine when the cost of viewing n videos using
plan A is less than the cost of viewing n videos using plan B.
8 + 3n < 5n
Plan A is less expensive when n is greater than 2.
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If K is between J and L, and JK = 12 and JL = 37, what KL =
Answer: 25
Step-by-step explanation:
Since the total distance of JL is 37, and JK is 12, we can find KL by subtracting JK from JL.
37 - 12 = 25
The sum of JK and KL makes up the distance of JL.
If you earn $560 for working 20 hours during the week. How much did you earn
per hour?
$560
$30
$20
$10
Are the ratios 1:2 and 19:20 equivalent?
No, these ratios are not equivalent.
Answer:
No they are not
Step-by-step explanation:
2(-3s+1-5) Pls HELP!
