EBK ESSENTIALS OF STATISTICS FOR BUSINE
EBK ESSENTIALS OF STATISTICS FOR BUSINE
8th Edition
ISBN: 8220103648783
Author: Anderson
Publisher: CENGAGE L
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Chapter 11.2, Problem 20E
To determine

Conduct the hypotheses test to find out whether the population variances in the salaries are equal at α=0.05. Explain the conclusion.

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3. Please
What does the margin of error include? When a margin of error is reported for a survey, it includes  a. random sampling error and other practical difficulties like undercoverage and non-response  b. random sampling error, but not other practical difficulties like undercoverage and nonresponse  c. practical difficulties like undercoverage and nonresponse, but not random smapling error  d. none of the above is corret
solve part a on paper
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