A Used Car Lot Owner Wanted to Estimate the Amount

Multiple Choice

A used car lot owner wanted to estimate the amount spent by customers during the summer months. She took a random sample of customers and recorded the amount they spent. A histogram showed the data was right- skewed so she took the log of each value and verified that the distribution of these values was more Normally distributed. What test/method should she use to estimate the mean amount spent during the summer months?

A) Mann- Whitney Test
B) Paired t- test
C) Sign Test
D) Data transformation and t- interval