3. In a recent survey, 654 UCT students were found to pay on average R110 per...
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3. In a recent survey, 654 UCT students were found to pay on average R110 per week for airtime/data. Suppose we know that the population standard deviation for weekly airtime/data costs is R34. a) What is the width of a 97% confidence interval estimate of the population mean? b) Determine the 95% confidence interval estimate of the population mean 3. In a recent survey, 654 UCT students were found to pay on average R110 per week for airtime/data. Suppose we know that the population standard deviation for weekly airtime/data costs is R34. a) What is the width of a 97% confidence interval estimate of the population mean? b) Determine the 95% confidence interval estimate of the population mean
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Related Book For
Understanding Business Statistics
ISBN: 978-1118145258
1st edition
Authors: Stacey Jones, Tim Bergquist, Ned Freed
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