Note: this preamble applies to questions 1 and 2. (Based on exercise 7.37 in the textbook) The University of Waterloo wants to demonstrate that car ownership is detrimental to academic achievement. A random sample of 20 students who do not own cars had a mean grade point average (GPA) of 2.65 with a population standard deviation of 0.6, whereas a random sample of 20 students who own cars had a mean GPA of 2.54 with a population standard deviation of 08' Let the population of students who do not own cars be population 1, and let the population of students who own cars be population 2. Which is the most appropriate test for the University of Waterloo to conduct? KN A paired differences test A A twosample test using Welch's method A Atwosample test using Pooled variance method m Atwo-sample test using the Normal distribution Select the most appropriate set of null and alternative hypotheses. O Ho: H1 - H2 = 0; Ha: H1 - H2 = 0 O Ho: H1 - H2 = 0; Ha: H1 - H2 > 0 O Ho: H1 - H2 = 0; Ha: H1 - H2 0.11