T test on AIU Job satisfaction data.

Perform hypothesis testingon one variable’s data. (Choose either the intrinsic or extrinsic column.) Perform a t-testby formulating a null and an alternative statement, choosing an acceptable significance value, selecting the test statistic and determining its value from the sample data, comparing the observed value to the critical value obtained and determining whether to reject or fail to reject the null hypothesis.

In a separate paragraph, provide some information on when to use a t-test and when to use a z-testand why. Also, provide some information about why samples are used instead of populations.

Step by step method for testing the hypothesis under 5 step approach is discussed here. Excel template for each problem is also included. This template can be used to obtain the answers of similar problems.