Test the claim that the mean GPA of night students is smaller than 2.4 at the .05 significance level. The null and alternative hypothesis would be:
a. H0 : μ = 2.4 Ha : μ > 2.4 b. H0 : p = 0.6 Ha : p < 0.6 c. H0 : p = 0.6 Ha : p ≠ 0.6 d. Η0 : μ = 2.4 Ha :μ ≠ 2.4 e. H0 : p = 0.6 Ha : p > 0.6 f. H0 : μ = 2.4 Ha : μ < 2.4 The test is: a. right-tailed b. left-tailed
c. two-tailed