It is believed that GPA grade point average based on a four

It is believed that GPA (grade point average, based on a four point scale) should have a positive linear relationship with ACT scores. Given below is the Excel output from regressing GPA on ACT scores using a data set of 8 randomly chosen students from a Big-Ten university. Regressing GPA on ACT ANOVA Referring to Table 13-8, the value of the measured test statistic to test whether there is any linear relationship between GPA and ACT is

Solution

the value of the measured test statistic to test whether there is any linear relationship between GPA and ACT is

1.589