Refer to Exercise 8.30. a. Calculate the width of a 90% confidence interval for m when n
Question:
a. Calculate the width of a 90% confidence interval for m when n = 100.
b. Calculate the width of a 99% confidence interval for m when n = 100.
c. Compare the widths of 90%, 95%, and 99% confidence intervals for µ. What effect does increasing the confidence coefficient have on the width of the confidence interval?
Exercise 8.30
Compare the confidence intervals in Exercise 8.29. What effect does each of these actions have on the width of a confidence interval?
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a A 90 confidence interval for is 1645 n Hence its width is b A 99 conf...View the full answer
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Related Book For 
Introduction To Probability And Statistics
ISBN: 9781133103752
14th Edition
Authors: William Mendenhall, Robert Beaver, Barbara Beaver
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