There are 2 questions below please explain clearly.

QUESTION 1: A research firm tests the miles per gallon characteristics of three brands of gasoline. Because of different gasoline performance characteristics in different brands of automobiles, five brands of automobiles are selected and treated as blocks in the experiment; that is, each brand of automobile is tested with each type of gasoline. The results of the experiment (in miles per gallon) follow. Gasoline Brands Automobiles I II III A 18 21 20 B 24 26 27 C 30 29 34 D 22 25 24 E 20 23 24 a. How many factors and treatments involved in the study? State the factors and list all the possible treatments b. Is there any interaction effect between automobiles and gasoline brands on the miles per gallon at 6% significance level. Use Microsoft excel to solve this problem. (13 Marks)QUESTION 2: Business 2.0's first annual employment survey provided data showing the typical annual salary for 97 different jobs. The following data show the annual salary for 30 different jobs in three fields: computer software and hardware, construction, and engineering. Computer Construction Engineering 94 55 75 90 53 70 63 77 88 84 60 77 73 41 89 75 54 85 94 51 96 77 64 105 a) How many treatments involved in this experiment? How many replications involve in each treatment? b) At a significance level of 1%, test for any significant difference in the mean annual salary among the three job fields. Use Microsoft excel to solve this