We wish to test the statement, the IU students study per week, on avg 21 hours per week. We know the standard derivation is 6. Significance level .05. Sample size 25

a)What is the z-score for this hypothesis test?

b) what is the P-value for this test?

c) What is the correct conclusion for this hypothesis test?

There is evidence at the .05 level that the mean hours studied by IU students is 21.

There is evidence at the .05 level that the mean hours studied by IU students is not 21.

There is not evidence at the .05 level that the mean hours studied by IU students is 21.

There is not evidence at the .05 level that the mean hours studied by IU students is not 21.