(3 points) A random sample of 150 observations is selected from a binomial population with unknown probability of success p. The computed value of p'is 0.63. (1) Test Ho p=0.5 against Ha: p > 0.5. Use a = 0.05. test statistic z= critical z score The final conclusion is A. There is not sufficient evidence to reject the null hypothesis that p = 0.5. B. We can reject the null hypothesis that p = 0.5 and accept that p > 0.5. (2) Test Ho: p = 0.5 against Ha: p < 0.5. Use = 0.05. test statistic z= critical z score The final conclusion is A. We can reject the null hypothesis that p = 0.5 and accept that p < 0.5. B. There is not sufficient evidence to reject the null hypothesis that p = 0.5. (3) Test Ho: p = 0.65 against Ha: p 0.65. Use a = 0.05. test statistic z = positive critical z score negative critical z score The final conclusion is A. We can reject the null hypothesis that p = 0.65 and accept that p = 0.65. B. There is not sufficient evidence to reject the null hypothesis that p = 0.65.