For the ages in Exercise 7: a) Construct a 95% confidence interval for the mean age of

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For the ages in Exercise 7:

a) Construct a 95% confidence interval for the mean age of all customers, assuming that the assumptions and conditions for the confidence interval have been met.

b) How large is the margin of error?

c) How would the confidence interval change if you had assumed that the standard deviation was known to be 10.0 years?

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Business Statistics

ISBN: 9780321925831

3rd Edition

Authors: Norean Sharpe, Richard Veaux, Paul Velleman

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Question Posted: May 15, 2015 02:19 AM

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For the ages in Exercise 7: a) Construct a 95% confidence interval for the mean age of

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a To find the confidence interval use 3184 2064 984 25 The 95 confidence ...View the full answer

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