# Graduate Program Applicants: Nondirectional Test

Over a 20 year period, the average grade point average of applicants to our graduate program has been found to be 3.27. This year the mean grade point average of the 57 students applying to our graduate program is 3.53, with a standard deviation of 0.29. Test the hypothesis that the current sample came from a population in which mu=3.27. Use a level of .05 and a non-directional test.

The answer is: t(56)=6.77, p<.01 There is a significant difference between this sample and the population.

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#### Solution Preview

Over a 20 year period, the average grade point average of applicants to our graduate program has been found to be 3.27. This year the mean grade point average of the 57 students applying to our graduate program is 3.53, with a standard deviation of 0.29. Test the hypothesis that the current sample came from a population in which mu=3.27. Use a level ...

#### Solution Summary

The expert examines non-directional test for a graduate program applicants. The expert provides a detailed step by step hypothesis testing.