Question
A welfare officer asserts that the mean sleep of young babies is 13hrs a day. A random sample of 64 babies shows that their mean
A welfare officer asserts that the mean sleep of young babies is 13hrs a day. A random sample of 64 babies shows that their mean sleep was only 12hrs monules with a standard deviation of 3hrs. At 5% significance level, test the hypothesis that mean sleep of babies is less than 13 hrs a day.
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An Introduction To Statistical Methods And Data Analysis
Authors: R. Lyman Ott, Micheal T. Longnecker
7th Edition
1305269470, 978-1305465527, 1305465520, 978-1305269477
