University offers supplimental instruction (SI) for chem students 3x weekly. Compute p value, and use to determine whether regression equation is useful for making predictions about the benefit of attending SI. Test at 5% sig level.

Hypothesis Ho: B1=0 and Ha: B1 not equal 0.

# of SI visits	2	8	10	9	15	7	5	4	8	10	7	7	5	4	4	11
Final class avg	81	85	76	76	72	72	42	59	81	71	66	88	63	62	61	70

A) p= 0.0325 since p< a do no reject the nulll hypothesis, regression is not useful for predictions

b) p=0.04229 since p

c) p=0.2633 since p < a reject the null hypothesis, regression is useful

d) p= .2529 since p< a, do not reject null, regression is not useful