Please help me with the following questions as soon as possible.

2. (12 pts) A company that leases trucks to other companies collected information on total miles driven (100,000 miles) and total maintenance cost (in thousand dollars) for each of 10 trucks in their rental fleet. The company is interested in modeling the relationship between total maintenance cost and total miles of operation so it can more accurately establish mileage charges for leasing these trucks. The analysis is done by SPSS. The output is provided below. ANOVA Sum of Model Squares df Mean Square F Sig. 1 Regression 904.257 904.257 349.417 000a Residual 20.703 8 2.588 Total 924.960 9 a. Predictors: (Constant), MILES b. Dependent Variable: COST Coefficientsa Unstandardized Standardized Coefficients Coefficients Model B Std. Error Beta Sig. (Constant) -2.702 959 -2.817 023 MILES 4.751 .254 .989 18.693 000 a. Dependent Variable: COST\fa. (6 pts) The company wants to estimate the average maintenance cost for trucks driven 300,000 miles and 500,000 miles. One can use either Bonferroni method or Working- Hotelling method to construct the intervals at 90% family condence level. Find the critical value for each procedure. Which procedure will you recommend? Briey explain. (You do not have to compute the actual interval.) b. (6 pts) Comment on the residual plot and suggest a remedial measure if needed