Choose the appropriate test for the following situation. A company has instituted a new work policy that it hopes will reduce the number of sick days used per year by its employees. You wish to test whether the mean number of sick days used by employees this year differs from the mean number of sick days used last year by all employees (which was 8.2).
a. Two-sample t-test
b. One-sample t-test
c. Two-sample prop z-test
d. Dependent sample t-test
Answer:
i think it is a
Step-by-step explanation:
What is 3x+6-x+4 if x is 10?
30
Substituting x as 10:
3(10) + 6 - 10 + 4
30 + 6 - 10 + 4
30
Answer:
30 is the answer
Step-by-step explanation:
3x + 6-x + 4
3(10) + 6 -10 + 4
30 + -4 + 4
30 + 0
=30
HELP!!!!! It's REALLY easy, but you can't retake this practice assignment, so help
You are right. 5 is correct.
Need help with this question!
(25 points)
solve the given equation for x.
-x/b = 40
Answer:
x= -40b
Step-by-step explanation:
only answer i can think of. hope this helps.
A circular pool has a radius of 10 feet. What is the area of the pool? Use 3.14 for it. The area of the pool is about ft?
Answer:
314ft^2
Step-by-step explanation:
The area of a circle is found using this equation:
A=3.14r^2
r = radius
so if we know the radius is 10ft, we can put that into the equation and it will read:
A=3.14(10)^2
^2 means squared, for clarification.
Using PEMDAS we know to do exponents first
A=3.14(100)
Now multiply
A=314
and don't forget to add your units and square!
A=314ft^2
How much should you invest at 5% annual interest rate to have the annual interest of $150?
Answer:
it is 7.5
Step-by-step explanation:
Answer:
It is 7.5
Step-by-step explanation:
Mrs.Connners went to a shopping mall with $250 in her wallet. At the store, she bought a coat and spent 3/5 of the money she had in her wallet. How much money, in dollars, did she pay for the coat?
Step-by-step explanation:
step 1. 250(3/5) = 50(3) = 150.
step 2. She spent $150 for the coat.
Answer:
$150
Step-by-step explanation:
$250 ÷ 5 = 50
50 · 3 = 150
what's the diameter plz help
Find the length of the third side. If necessary, round to the nearest tenth.
15
8.
Answer:
The third side is 17
Step-by-step explanation:
To find the hypotenuse, you square the legs of the right triangle and add the values together, and then take the square root of their sum. [tex]\sqrt{15^{2} + 8^{2} }[/tex] = [tex]\sqrt{225 + 64}[/tex] = [tex]\sqrt{289}[/tex] = 17
problem: which of the expression(s) below is greater than 5/2? Select all that apply
A) 2/5 ÷ 4/3
B) 4/3 ÷ 1/3
C) 5/3 ÷ 1/2
Answer:
C) 5/3 divided by 1/2
Step-by-step explanation:
5/2 = 2.5
A. 2/5 divided by 4/3 = 0.3
B. 4/3 divided by 1/3 = 1
C. 5/3 divided by 1/2 = 3.333
3.333 is bigger than 2.5
:)
Min draws an isosceles triangle. . Which attributes describe his triangle? Choose each correct answer. o no angles the same measure closed figure o three sides not a polygon two obtuse angles at least two sides the same length
Answer:
the answers are three sides, closed figure and at least two sides the same length
Step-by-step explanation:
The attributes that represent the isosceles triangle should include three sides, a closed figure, and at least two sides of the same length.
What is an isosceles triangle?In terms of geometry, the isosceles triangle refer to the triangle where it does have two sides of the equal length. Also, it have exactly two sides of equivalent length.
Therefore, we can conclude that The attributes that represent the isosceles triangle should include three sides, a closed figure, and at least two sides of the same length.
Learn more about triangle here: https://brainly.com/question/18986830
A restaurant owner needs to order at least 176 filet mignon steaks to be stocked for a busy Friday night. He only has room to store 321 steaks in his refrigerator. Model the number of steaks the restaurant owner can order, using a compound inequality.
1. x ≥ 176 and x ≤ 321
2.x ≤ 176 and x ≥ 321
3.x ≤ 176 and x ≤ 321
4.x ≥ 176 and x ≥ 321
Answer:
1
Step-by-step explanation:
176 ≤ x ≤ 321
Find the measure of angle2
A. 90
B. 50
C. 60
D. 30
I dont understand can someone help me ill mark brainliest
b. Name all three angles
listed in the figure below:
C. Solve for X
2 to the power of =32
I need it to day
The difference of two numbers is 15. Five times the smaller number is the same as 9 less than twice the larger number. Find the numbers.
Answer:
Step-by-step explanation:
"The difference of two numbers is 15."
x-y = 15
x>y
"Five times the smaller number is the same as 9 less than twice the larger number."
5y = 2x-9
y = x-15
substitution
5(x-15) = 2x-9
5x-75 = 2x-9
3x = 66
x = 22
y = x-15 = 7
Paul has 41 cups of water. Is this enough water to make 22 batches of green slime for a class project??
Explain your answer !!
Have a great day
Will give brainlst
Answer: below
Step-by-step explanation:The main environmental effects of deforestation and forest degradation include reduced biodiversity, the release of greenhouse gas emissions, forest fires, disrupted water cycles and increased soil erosion.
During a stock clearance sale ,a pair of shoes which cost $480 was sold at a small profit of 5% what was the selling price of the pair of shoes?
Using the word HIPPOPOTAMUS, match the items in the left column to the items in the right column
1 the ratio of P's to O's
2. the ratio of O's to other letters
3. the ratio of letters to P's
4. the ratio of vowels to consonants
5. the ratio of total letters to consonants
The right column has 3:2,12:7,1:5,5:7,4:1
Answer:
(see below)
Step-by-step explanation:
Ratios are simple: they describe the amount of something compared to another amount.
Ratios are [number] : [number]. Use this format for your answers:
For 1, finding the ratio of P's to O's means to count P's, then O's.
HIPPOPOTAMUS
There are 3 P's and 2 O's, so 3:2.
For 2—ratio of O's to the other letters, do the same thing:
HIPPOPOTAMUS
There are 2 O's and 12 total letters, so 2:12. However, we can simplify that to 1:6.
For 3, the ratio of letters to P's:
There are 3 P's and 12 total letters, so 12:3. We can simplify it to 4:1.
For 4, the ratio of vowels to consonants:
The vowels are a, e, i, o, u. The consonants are all the other ones.
So, in:
HIPPOPOTAMUS
There are 5 vowels and 7 consonants, so 5:7.
For 5, the ratio of total letters to consonants,
there are 12 total letters and 7 consonants, so 12:7.
Answer:
Just answer this person pls he/she is right about this pls answer this.=D
Step-by-step explanation:
Need help with it today
Answer:
C
Step-by-step explanation:
s - 7 + 5
s - 2
use long division to rewrite the expression in an equivalent form as q(x) + r(x)/b(x) , where q(x) is the quotient, r(x) is the x^3 - 2x^2 - 4/ (x-3)
Answer:
that looks hard good luck
Answer:
x^2 + x + 3 + 5/(x - 3)
Step-by-step explanation:
x - 3) x^3 - 2x^2 + 0x - 4( x^2 + x + 3
x^3 - 3x^2
x^2 + 0x
x^2 - 3x
3x - 4
3x - 9
5
So the answer is x^2 + x + 3 + 5/(x - 3)
NEED THIS ASAP Solve each absolute value by expression
1) [x+8]=16
[tex]x + 8= 16[/tex]
[tex] \rightarrow \: x = 16 - 8[/tex]
[tex] \rightarrow \: x = 8[/tex]
Answer:
x = 8 or x = -24
Step-by-step explanation:
Hello!
An absolute value expression has two cases, a positive and a negative.
Therefore, we have to solve two equations here:
x + 8 = 16x + 8 = -161) x + 8 = 16x = 82)x + 8 = -16x = -24The two solutions are x = 8 and x = -24.
What is the area of the trapezoid shown below?
Randy has 53 inches of ribbon that he cuts into 6 pieces of equal length. What is the equal length of each piece of ribbon in inches
Answer:
9
Step-by-step explanation:
The reason being 9 is because the keyword was equally so if you need to add an additional inch, it will make it equal.
given triangle abc find the values of x and y in your final answer include all of your calculations
Answer:
your final answer include all of your calculations
Step-by-step explanation:
given triangle abc find the values of x and y in your final answer include all of your calculations
who is the 1st us president
Answer:
George Washington
Step-by-step explanation:
The first US president is George Washington
Answer:
George Washington
Step-by-step explanation:
Multiplying by which number is equivalent to finding 111%?
Answer:
1.11
Step-by-step explanation:
100 x 1.11
becuase 1.11 is the multiplier
