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Concept explainers
a.
To find the conclusion about the accuracy of the claim.
a.
![Check Mark](/static/check-mark.png)
Answer to Problem 10E
The company's claim is most likely correct
Explanation of Solution
Given:
The population proportion is
Calculation:
The company's claim is probably correct as less number of people feel engaged at work.
b.
To find the conclusion about the accuracy of the claim.
b.
![Check Mark](/static/check-mark.png)
Answer to Problem 10E
The company's claim is most likely incorrect.
Explanation of Solution
Given:
The population proportion is
Calculation:
The company's claim is probably incorrect as more number of people feel engaged at work.
c.
To estimate the variation among sample proportions for
c.
![Check Mark](/static/check-mark.png)
Answer to Problem 10E
Explanation of Solution
Given:
The population proportion is
Calculation:
The lowest variation is
Therefore range of variation is
Chapter 11 Solutions
Big Ideas Math A Bridge To Success Algebra 2: Student Edition 2015
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