1. Days on Dealers' Lots A researcher wishes to see if the mean number of days that a basic, low-price, small automobile sits on a dealer's lot is 29. A sample of 30 automobile dealers has a mean of 30.1 days for basic, low-price, small automobiles. At a = 0.05, test the claim that the mean time is greater than 29 days. The standard deviation of the population is 3.8 days.
Type of test:
Reason/s:​