24.A basketball player with a poor foul-shot record practices intensively during the off season. He tells the coach that he has raised his proficiency from 50% to 75%. The coach is dubious, and asks him to take 10 shots. The player makes 8 of them. Did the player prove that he has improved? You are going to conduct a hypothesis test. Let p be the player's proficiency (chance that he makes the shot).The null hypothesis is that the player is no better than before (p=50%).

Suppose it takes at least 8 shots to convince the coach that he has improved. The significance level of this test is closest to which one

5%

4%

50%

3%

If the player can actually hit 75% now, and it takes at least 8 successful shots to convince the coach, the power of the test is closest to which one

50%

70%

60%

80%