Posted by **Mrs. Lakshmi** on Friday, January 1, 2010 at 8:37am.

Kind attention Psydag:

A random sample of size 20 from a normal population with sample mean 42 and sample standard deviation of 6 . To test the hypothesis the population mean 44 at 5% level of significance , find the p-value and comment

Clarification:

The sample size is 20 which is less than 30. Z tables cannot be used for this problem. It is given that the distirbution is normal with small sample size and hence t distribution should be used. I need some assistance in finding the P value using t distribution.

Can you please throw some light on this particular point.

Thanks for the response. Mrs. Lakshmi

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