6. A used car salesman says that the mean price of a 2015 Honda Pilot is $23,900. You are suspicious that this price is too high. You find a random sample of 14 similar vehicles and find that their mean price is 23,000 and the sample standard deviation is $1113.
Is there enough evidence to reject the salesman’s claim at a significance level of 5%? Assume that the population data is normally distributed.
Remember to provide clear evidence and conclusion.