Q7 Question146.101112131415161718192021222324O (11.631, 13.369)O (11.678, 13.322)O (11.570, 13.430)(11.503, 13.497)QUESTION 7A research worker wants to determine the average time it takes a mechanic to rotate the tires of a car, and she wants to be able to assert with 98%confidence that the mean of her sample is off by at most 0.3 minutes. If she can presume from past experience that the actual time follows normaldistribution with a standard deviation of 1.5 minutes, how large the sample will she have to take?11106O 135O 136QUESTION 8A bottling company produces bottles that hold 12 ounces of liquid. Periodically, the company gets complaints that their bottles are not holdingenough liquid. To test H:u=12 against H, :u<12 the company randomly sampled 36 bottles and found that the average amount of liquidheld by the bottles was 11.6 ounces with a standard deviation of 0.9 ounce. What conclusion would you make at 0.01 level of significance?O Reject HO because -2.67<-2.576O Do not reject H0 because -2.67 <-2.576O Reject HO because-2.67 <-2.32600

Name: Q7 Question146.101112131415161718192021222324O (11.631, 13.369)O (11.6
Uploaded: 2024-03-20T06:47:08.000Z
Channel: Bartleby
Description: Q7 Question146.101112131415161718192021222324O (11.631, 13.369)O (11.678, 13.322)O (11.570, 13.430)(11.503, 13.497)QUESTION 7A research worker wants to determine the average time it takes a mechanic to rotate the tires of a car, and she wants to be a