Refer to the lincolnville school district bus data. a. select the variable for the number of miles traveled last month. conduct a hypothesis test to determine whether the mean miles traveled last month equals 10,000. use the .01 significance level. find the p-value and explain what it means. b. a study of school bus fleets reports that the average per bus maintenance cost is $4,000 per year. using the maintenance cost variable, conduct a hypothesis test to determine whether the mean maintenance cost for lincolnville bus fleet is more than $4,000 at the .05 significance level. determine the p-value and report the results.