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. What assumption about the population distribution is needed in order to conduct the t test in (a)? The population distribution is approximately normal. The population distribution is skewed. The population distribution is approximately uniform Construct a normal probability plot to evaluate the assumption made in (b). Choose the correct graph below. Normal probability plot Normal probability plot Normal probability plot

Solution

Data is missing in the problem. But for this part data is not needed so I am answering it. Assumotion for t-test:

Population should be normally distributed.

So option A is correct.