Question 15 11. An automotive researcher wanted to estimate the difference required to come to a complete stop while traveling 40 miles per hour on wet versus dry pavement. Because car type plays a role, the researcher used eight different cars with the same driver 15 pts and tires. The braking distance (in feet) on both wet and dry pavement is shown in the table below. Conduct the appropriate hypothesis test to determine if the braking distance on the wet surface is longer from the braking distance on the dry surface. Use a 0.05 level of significance. Note: a normal probability plot of the data indicate that the differences are approximately normally distributed with no outliers. (20 points) Car 1 2 4 5 6 7 8 Wet 106 100 108 111 105 105 110 107 Dry 71 68 74 73 75 75 75 81 What are the null and alternative hypotheses? Ho : Ha = 0 Ho : Ha SO a. b. H1 : Ma # 0 H1 : Hd = 0 Ho : Ha = 0 Ho : Ma = 0 d. H1 : Hd 0 b. What is your test statistic? c. What is your p-value or critical values and what is your conclusion? Briefly explain as in, I reject Ho because... or | do not reject Ho because. d. Write a conclusion sentence in the context of the problem. TO BY VX C Edit View Insert Format Tools Table 12pt ~ Paragraph BI 0words