Salary data from two random samples of high school teachers from Pennsylvania and Ohio are as follows.

Question:

Salary data from two random samples of high school teachers from Pennsylvania and Ohio are as follows. Also shown are the population standard deviations for these populations.

a. Construct a 90% confidence interval to estimate the difference in the average salaries of the high school teachers in these two states.

b. Based on the results from part a, can you conclude that a difference exists in the average salaries?

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Business Statistics

ISBN: 9780321925121

2nd Edition

Authors: Robert A. Donnelly

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Question Posted: Jul 17, 2015 07:41 AM

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Salary data from two random samples of high school teachers from Pennsylvania and Ohio are as follows.

Question:

Pennsylvania Ohio Sample mean Sample size Population standard deviatin $6433 $53.289 $49,945 46 $7,012 40

Step by Step Answer:

a b The confidence interval does not include zero so the...View the full answer

Business Statistics

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