On a television show eight contestants try to lose the

Last updated: 5/18/2023

On a television show eight contestants try to lose the highest percentage of weight in order to win a cash prize As part of the show the contestants are timed as they run an obstacle course The table shows the times in seconds of the contestants at the beginning of the season and at the end of the season At a 0 05 is there enough evidence to support the claim that the contestants times have changed Assume the samples are random and dependent and the population is normally distributed Complete parts a through e below Contestant 1 2 3 4 5 6 7 8 Time beginning 139 3 142 8 119 5 133 3 122 2 152 6 145 8 146 9 Time end 139 1 143 0 119 2 133 1 122 1 152 5 146 0 146 5 a Identify the claim and state Ho and Ha What is the claim OA The contestants times have not changed B The contestants times have changed OC The contestants times have increased OD The contestants times have decreased Let Hd be the hypothesized mean of the difference in the times beginning end What are Ho and H O A Ho Hasd O B Ho Hd 0 OC Ho Hd SO Ha Hd 0 Ha Hd d Ha Hd 0 O D Ho Hd 20 Ha Hd 0 OE H Hd zd Ha Hd d OF Ho Hd 0 Ha Hd 0