EBK STATISTICS FOR MANAGEMENT AND ECONO
11th Edition
ISBN: 8220103671170
Author: KELLER
Publisher: YUZU
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Question
Chapter 13.1, Problem 1E
a:
To determine
The difference between the two population means.
a:
Expert Solution
Explanation of Solution
The difference between the two population means (DP) can be calculated as follows:
The difference between the two population means lies between -18.87 and 73.87.
b:
To determine
The new difference between the two population means.
b:
Expert Solution
Explanation of Solution
The difference between the two population means (DP) can be calculated as follows:
The difference between the two population means lies between -91.33 and 201.33.
c:
To determine
The impact of increasing standard deviation.
c:
Expert Solution
Explanation of Solution
When the standard deviation increases, it increases the difference in the interval.
d:
To determine
The difference between the two population means with
d:
Expert Solution
Explanation of Solution
The difference between the two population means (DP) can be calculated as follows:
The difference between the two population means lies between -18.87 and 91.26.
e:
To determine
The impact of increasing sample size.
e:
Expert Solution
Explanation of Solution
When the sample size increases, it reduces the difference in the interval.
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Chapter 13 Solutions
EBK STATISTICS FOR MANAGEMENT AND ECONO
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