Saturday
April 18, 2015

Homework Help: statistics

Posted by Patrick on Thursday, August 7, 2014 at 12:02pm.

The mean sleep time of babies is 14hrs,a sample of 64 babies showed a mean of 13hrs 30min with a standard deviation of 3hrs at 1% level of significance. Test the assertion that the mean sleep of the babies is less than 14hrs a day.

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