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A sample of n = 36 students was taken for a study on study habits at...

A sample of n = 36 students was taken for a study on study habits at one small university. National studies have shown that for all university students the mean number of hours studied per week has population mean 11 hours and population standard deviation 3 hours.

Use the formulas from the CLT to give the mean and standard error for the distribution of Xbar.

Math   Statistics-And-Probability   
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Answer #1

Solution :

Given that ,

mean =   = 11

standard deviation = = 3

n = 36

the mean  distribution of = = 11

standard error = =  / n = 3/ 36=0.5

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