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DiKsa [7]
4 years ago
14

The Department of Education would like to test the hypothesis that the average debt load of graduating students with a Bachelor'

s degree is equal to $17,000. A random sample of 34 students had an average debt load of $18,200. It is believed that the population standard deviation for student debt load is $4,200. The Department of Education would like to set α = 0.05. Which one of the following statements is true?
Because the p-value is greater than α, we fail to reject the null hypothesis and conclude that the average debt load is equal to $17,000.

Because the p-value is less than α, we reject the null hypothesis and conclude that the average debt load is equal to $17,000.

Because the p-value is less than α, we fail to reject the null hypothesis and conclude that the average debt load is not equal to $17,000.

Because the p-value is greater than α, we fail to reject the null hypothesis and cannot conclude that the average debt load is not equal to $17,000.
Mathematics
1 answer:
mars1129 [50]4 years ago
7 0

Answer:

Step-by-step explanation:

Download docx
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Creat a table of values for the equation y=-x-3
nadya68 [22]

Answer:

x /\ y

1  /\ -4

2 /\ -5

3 /\ -6

4 /\ -7

... /\ ...

Step-by-step explanation:

4 0
3 years ago
If a triangle is 12 inches high and has a 20 inch long hypotenuse then how wide is it?
Ber [7]

Answer:

The triangle should be 16 inches wide.

Step-by-step explanation:

\text {Use the Pythagorean Theorem to solve for the leg.}\\a^2 + b^2 =c^2

What we know:

  • One of the legs measures 12 inches.
  • The hypotenuse is 20 inches.

We need to solve for b. Solving for a while b is 12 would also be acceptable.

12^2 + b^2 = 20^2  \text {  OR  }   a^2 +12^2=20^2

We will use the first equation.

12^2 + b^2 = 20^2\\12 * 12 = 144\\20 * 20 = 400\\\\\boxed {144 + b^2 = 400}

\text {Subtraction property of equality: }\\144-144+ b^2 = 400-144\\\boxed {b^2 = 256}\\\\\text {Take the square root of 256: }\\\sqrt{256}=\sqrt{b^2} \boxed {16 = b}

The triangle should be 16 inches wide.

3 0
4 years ago
The perimeter of a rectangular garden is 44 meters. The length of the rectangle is 5 less than twice the width. Find the length
defon

9514 1404 393

Answer:

  • width: 9 m
  • length: 13 m

Step-by-step explanation:

Let w represent the width. Then the length is 2w-5, and the perimeter is ...

  P = 2(L+W)

  44 = 2((2w-5) +w)

  44 = 6w -10

  54 = 6w

  9 = w

  2(9) -5 = 13 = length

The length of the rectangle is 13 meters; the width is 9 meters.

6 0
3 years ago
Write an equation for a line that passes through (-4,8) and 8,-1
KatRina [158]
Slope is change in y over change in x.

Change in y is -9
Change in x is +12

So -9/12 or -2/3

Answer -2/3
5 0
4 years ago
Do all triangles have right angles why or why not
Papessa [141]
Not all triangles have right angles. A triangle is simply a closed figure with three sides and three angles, the sum of the degrees of which add up to 180°.

For instance, an equilateral triangle will will have all three angles equal to each other (60°, 60°, 60<span>°).

Some triangles may have right angles (90</span><span>°), but not all do.
Hope that helped =)</span>
3 0
3 years ago
Read 2 more answers
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