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

Question

Quizplus · Accepted Answer

Data transformation and t-interval is appropriate because the log transformation normalized the data, allowing for the use of a t-interval to estimate the mean.

A Used Car Lot Owner Wanted to Estimate the Amount