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Two professors wanted to study how students from their two universities compared in their capabilities of using Excel spreadsheet in undergraduate information system courses. A comparison of the student’s demographics was also performed. One school is a state university in the western United States, and the other is a school is a state university in the eastern United States. The following table contains information regarding the ages of the students.,School Sample Size Mean Standard Deviation,Western 93 23.28 6.29,Eastern 135 21.16 1.32,,a. Using a 0.01 level of significance, is there evidence of a difference in the variances of the age of student at the western school and the eastern school?,b. Discuss the practical implication of the test performed in (a),c. To test for difference in the mean age of students, is it most appropriate to us the pooled variance t test or the separate-variance / test,