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Answer the following questions and use Excel or this document to show your work. 1. Consider the...

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Question

Basic Math

Answer the following questions and use Excel or this document toshow your work.

1. Consider the following results for two samples randomly takenfrom two normal populations with equal variances.

Sample I

Sample II

Sample Size

28

35

Sample Mean

48

44

Population Standard Deviation

9

10

a. Develop a 95% confidence interval for the difference betweenthe two population means.

b. Is there conclusive evidence that one population has a largermean? Explain.

Answer & Explanation Solved by verified expert
3.9 Ratings (424 Votes)
Part aConfidence interval Z2 Z 005 2 196Lower Limit Lower Limit 06998Upper Limit Upper Limit 8699895    See Answer
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