Create a research problem you are interested in for which the appropriate test of the statistical hypothesis would require the use of a z-score. (If you are not sure of the population mean for the variable of interest, you may invent a hypothetical population mean for the sake of this Discussion.) You will not need SPSS to complete this Discussion problem.

For this research problem:

Clearly identify the independent and dependent variables you would study.

Determine whether a one-tail or two-tail test is most appropriate and describe why.

Generate a testable null statistical hypothesis and an alternative statistical hypothesis.

Select an alpha level of .05, .01, or .001 and justify your choice.