A national fast food chain, with thousands of franchise locations, needed to audit the books at each

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A national fast food chain, with thousands of franchise locations, needed to audit the books at each location. They first selected a sample of 50 locations and performed the audit. They determined that a 95% confidence interval for the mean time to complete an audit is
(28.4 hours, 52.7 hours)
Answer the following questions "Yes," "No," or "Cannot tell" and justify your answer.
(a) Does the population mean lie in the interval (28.4, 52.7)?
(b) Does the sample mean lie in the interval (28.4, 52.7)?
(c) For a future sample of 50 franchise locations, will the sample mean fall in the interval (28.4, 52.7)?
(d) Does 95% of the sample data lie in the interval (28.4, 52.7)?
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Statistics Principles And Methods

ISBN: 9780470904114

7th Edition

Authors: Richard A. Johnson, Gouri K. Bhattacharyya

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