Last year a company received 50 complaints concerning carpet

Last year a company received 50 complaints concerning carpet installation. The data in the accompanying table represents the number of days between the receipt of a complaint and the resolution of the complaint. Complete parts (a) through (d). Click the icon to view the data table. Do you think that the assumption needed in order to conduct the t test in (a) is valid? Yes, because the normal probability plot is a straight line. The population distribution is approximately uniform. Yes, although the normal probability plot is not a straight line, the sample size is greater than 30, so the central limit theorem applies and the results of the t test are still valid. Yes, because the normal probability plot is a straight line The population distribution is approximately normal. No, because the normal probability plot is not a straight line. The population distribution is not approximately normal and the t test is not valid

Solution

B)

yes althouth the normal probabilitry plot is not a straight line, the sample size is greater trhan 30

so the central limit theorem applies and the results of the t test are still valid