A used car dealer says that the mean price of used cars sold in the last 12 months is at least \($21,000.\) You suspect this claim is incorrect and find that a random sample of 14 used cars sold in the last 12 months has a mean price of \($19,189\) and a standard deviation of \($2950.\) Is there enough evidence to reject the dealer’s claim at α = 0.05? Assume the population is normally distributed.