question 1, 2

Question 1 4 pts We survey 24 MU students and find that 16 prefer Twitter to Facebook. Does this provide evidence that MU students generally prefer Twitter over Facebook, or vice versa? To answer this question, we do a hypothesis test using a significance level of 0.01. Check all of the following statements that are correct (more than one alternative can be correct). Also, let p be the proportion of MU students preferring Twitter. a. The null hypothesis is Ho : p = 0.67 O b. The p-value for this hypothesis test is 0.153 c. For this hypothesis test, we fail to reject Ho O d. The value 0.4 is included in the 95% confidence interval. Question 2 4 pts Now, we survey 25 MU students and find that 15 of them use Facebook. We do the same thing at KU, surveying 23 students and finding that 14 of them use Facebook. Is there evidence that a different proportion of MU students use Facebook, as compared to KU students? To answer this question, we do a hypothesis test using a significance level of 0.01. Check all of the following statements that are correct (more than one alternative can be correct). Also, let p, be the proportion of MU students using Facebook and let p2 be the proportion of KU students using Facebook. a. The null hypothesis is Ho : P1 - P2 = 0 O b. The p-value for this hypothesis test is 0.009 c. For this hypothesis test, we reject Ho O d. The value -0.16 is included in the 95% confidence interval for the difference in proportions