In trying to determine the sphere of influence of a sports centre a random sample of 100

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In trying to determine the sphere of influence of a sports centre a random sample of 100 visitors was taken. This indicated a mean travel distance (d) of 10 miles with a standard deviation of 3 miles:

(a) What are the 90% confidence limits for the population mean travel distance (D),

(b) What sample size would be required to ensure that the confidence interval for D was 0.5 miles at the 95% level?

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Business Statistics Using Excel

ISBN: 9780199659517

2nd Edition

Authors: Glyn Davis, Branko Pecar

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Question Posted: Nov 25, 2023 04:43 AM

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In trying to determine the sphere of influence of a sports centre a random sample of 100

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a To find the 90 confidence limits for the population mean travel distance D we can use the formula ...View the full answer

Business Statistics Using Excel

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