Suppose you conducted an analysis of the relationship between the number of prison disturbances (Y) and the number of guard infractions against inmates (X) in 30 maximum security institutions.
Some statistician asked you to test the null hypothesis about the relationship between prison disturbances and number of guard infractions at these 30 maximum security prisons. The null hypothesis is Ho: r = 0, and the statistician wants you to use a two tailed test and a .05 significance level.
What test statistics are you going to use? A z-, t-, X², or F-test?