From a random sample of 64 dates, the mean record of high daily rainfall in Changi (Singapore)
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From a random sample of 64 dates, the mean record of high daily rainfall in Changi (Singapore) area has a mean of 10.22 mm. Assume the population standard deviation is 15.77 mm.
You are given the sample mean and the population standard deviation. Use this information to construct 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals.
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Related Book For
Elementary Statistics Picturing The World
ISBN: 9781292260464
7th Global Edition
Authors: Betsy Farber, Ron Larson
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