Previous Problem Problem List Next Problem (1 point) Randomly selected 120 student cars have ages with a mean of 7.2 years and a standard deviation of 3.6 years, while randomly selected 55 faculty cars have ages with a mean of 5.5 years and a standard deviation of 3.5 years. 1. Use a 0.03 significance level to test the claim that student cars are older than faculty cars. The test statistic is H The critical value is Is there sufficient evidence to support the claim that student cars are older than faculty cars? O A. Yes OB. No 2. Construct a 97% confidence interval estimate of the difference /1 - /2, where /] is the mean age of student cars and /2 is the mean age of faculty cars.