Chapter 11.5, Problem 10E

a.

To determine

To find the conclusion about the accuracy of the claim.

Answer to Problem 10E

The company's claim is most likely correct

Explanation of Solution

Given:

The population proportion is $0.29$ when $16$ employees feel engaged at work.

Calculation:

The company's claim is probably correct as less number of people feel engaged at work.

b.

To determine

To find the conclusion about the accuracy of the claim.

Answer to Problem 10E

The company's claim is most likely incorrect.

Explanation of Solution

Given:

The population proportion is $0.29$ when $23$ adults are married in the survey.

Calculation:

The company's claim is probably incorrect as more number of people feel engaged at work.

c.

To determine

To estimate the variation among sample proportions for samples of size $50$ .

Answer to Problem 10E

  $0.15-0.43$

Explanation of Solution

Given:

The population proportion is $0.29$ .

Calculation:

The lowest variation is $0.15$ and the highest variation is $0.43$

Therefore range of variation is $0.15-0.43$