Is the ideal number of children equal to 2, or higher or lower than that?

Mathematics

1 answer:

Anna [14]4 years ago

4 0

Answer:

Step-by-step explanation:

a, test statistic obtain using values from the output... please see the attached picture for solution.

b, based on the output , the probability value is zero meaning the null hypothesis was true.

it can be concluded that the population mean does not equal ton 2.

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Please help me asap!

diamong [38]

V= x*(10-2x)(8-2x)

for greatest volume, differentiate v w.r.t x and equate to 0,

dv/dx= (10-2x)(8-2x) + x(-2)(8-2x)+ x(10-2x)(-2)=0

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5 0

3 years ago

What is the solution to the following system of equations?

Damm [24]

Answer:

(3, - 1 )

Step-by-step explanation:

Given the 2 equations

x - 3y = 6 → (1)

2x + 2y = 4 → (2)

Rearrange (1) expressing x in terms of y by adding 3y to both sides

x = 6 + 3y → (3)

Substitute x = 6 + 3y into (2)

2(6 + 3y) + 2y = 4 ← distribute and simplify left side

12 + 6y + 2y = 4

12 + 8y = 4 ( subtract 12 from both sides )

8y = - 8 ( divide both sides by 8 )

y = - 1

Substitute y = - 1 into (3) for corresponding value of x

x = 6 + 3(- 1) = 6 - 3 = 3

Solution is (3, - 1 )

6 0

3 years ago

Read 2 more answers

The data set below shows the weights of some puppies, in pounds, at a kennel:

Fudgin [204]

The answer is

D. A histogram is shown with title Puppy Weight. On the horizontal axis, the title is Pounds. The title on the vertical axis is Puppies. The range on the horizontal axis is 10 to 11, 12 to 13, and 14 to 15. The values on the vertical axis are from 0 to 6 at intervals of 1. The bar for the first range goes to 4, the bar for the second range goes to 2, the bar for the third range goes to 3.

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