ML Text AL Edit Links Query X 38 fx xbar B D Wortplace Z SUOI 1. During the 2013 season, Major League Baseball took steps to speed up the play of baseball games in order to maintain fan interest. The average duration of a game from a sample of 60 games played during the summer of 2012 was 2 hours and 52 minutes The average duration of a game from a sample of 50 games played during the summer of 2013 was 2 hours and 46 minutes. For the purposes of this question, let 2013 games be population 1. 1a. A research hypothesis was that the steps taken during the 2013 season would reduce the population mean duration of baseball games. Formulate null and alternative hypotheses Use the drop-downs for symbols. 3 Not Answered Not Answered 2 lb. What is the point estimate of the reduction in the mean duration of 3 games during the 2003 season? 4 5 6 7 8 9 0 Solution Not Answered 12 33 4 1c. Historical data indicate a population standard deviation of 12 minutes is 5 a reasonable assumption for both years. Conduct the hypothesis test and 16 report the p-value. At a 0.05 level of significance, what is your condusion? 37 39 40 p-value Not Answered Use the drop-down for options Cond. Fail to rejes the null Check carefully 45 id. What was the percentage reduction in the mean duration of baseball 46 47 48 49 Solution Not Answered So le. Should management be pleased with the results of the statistical analysiDicts. Should the 51 52 53 54 55 le Not Answered 56 59 for the ML Text AL Edit Links Query X 38 fx xbar B D Wortplace Z SUOI 1. During the 2013 season, Major League Baseball took steps to speed up the play of baseball games in order to maintain fan interest. The average duration of a game from a sample of 60 games played during the summer of 2012 was 2 hours and 52 minutes The average duration of a game from a sample of 50 games played during the summer of 2013 was 2 hours and 46 minutes. For the purposes of this question, let 2013 games be population 1. 1a. A research hypothesis was that the steps taken during the 2013 season would reduce the population mean duration of baseball games. Formulate null and alternative hypotheses Use the drop-downs for symbols. 3 Not Answered Not Answered 2 lb. What is the point estimate of the reduction in the mean duration of 3 games during the 2003 season? 4 5 6 7 8 9 0 Solution Not Answered 12 33 4 1c. Historical data indicate a population standard deviation of 12 minutes is 5 a reasonable assumption for both years. Conduct the hypothesis test and 16 report the p-value. At a 0.05 level of significance, what is your condusion? 37 39 40 p-value Not Answered Use the drop-down for options Cond. Fail to rejes the null Check carefully 45 id. What was the percentage reduction in the mean duration of baseball 46 47 48 49 Solution Not Answered So le. Should management be pleased with the results of the statistical analysiDicts. Should the 51 52 53 54 55 le Not Answered 56 59 for the
