A welfare officer asserts that the mean sleep of young babies is 13hrs a day. A random
Fantastic news! We've Found the answer you've been seeking!
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 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.
Related Book For
An Introduction To Statistical Methods And Data Analysis
ISBN: 9781305465527
7th Edition
Authors: R. Lyman Ott, Micheal T. Longnecker
Posted Date: