TB MC Qu. 9-73 (Algo) A car dealer who sells only... A car dealer who sells only late-model luxury cars recently hired a new salesperson and believes that this salesperson is selling at lower markups. He knows that the long-run average markup in his lot is $5,510. He takes a random sample of 49 of the new salesperson's sales and finds an average markup of $4,910 and a 10 standard deviation of $790. Assume the markups are normally distributed. What is the value of an appropriate test statistic for the car dealer to use to test his claim? points 8 00:54:55 Multiple Choice eBook O t48 =-5.32 2=-0.75 O tag =-0.75 O 2=-5.32 A newly hired basketball coach promised a high-paced attack that will put more points on the board than the team's previously tepid offense historically managed. After a few months, the team owner looks at the data to test the coach's claim. He takes a sample of 36 of the team's games under the new coach and finds that they scored an average of 91 points with a standard deviation of 4 points. Over the past 10 years, the team had averaged 89 points. What is the value of the appropriate test statistic to test the new coach's claim at the 1% significance level? Multiple Choice O 2= 0.33 O t35 = 3.00 O t35 = 0.33 O z= 3.00