Question.

Employee.Number Annual.Salary Gender Age Experience Training.level 5 50602 M 44 5 B 47 49033 F 53 10 B 18 58968 F 61 10 B 16 53429 F 52 5 B 11 53174 M 46 4 C 46 56294 M 49 10 B 61 53627 M 47 10 A 45 53174 M 54 10 A 15 44884 M 41 1 A 22 54981 M 47 7 A 31 41188 F 35 2 B 17 46574 M 57 8 A 28 44183 F 38 5 B 4 53423 M 47 1 B 57 47180 F 45 5 B 26 56884 M 47 10 A 55 29606 F 34 4 B 32 27525 F 35 3 A 2 53174 M 54 10 B 60 53429 F 45 7 B 71 44138 F 38 2 B 43 51237 M 58 2 B 7 24395 M 30 5 A 30 35423 F 47 4 A 44 53627 M 52 8 A 65 37292 M 46 O A 56 24352 F 35 1 A 53 24352 F 35 1 A 63 42961 M 36 3 B 41 46574 M 56 8 A 8 24395 F 52 6 A 59 53174 M 47 10 A 67 41188 F 34 3 B 10 23975 F 58 4 A 34 44183 M 41 2 A 9 43124 M 48 8 A 29 24967 F 55 6 A 12 58515 M 36 8 C 50 51237 M 56 10 37 40741 M 47 2 A 20 53627 M 47 10 B 70 53174 M 50 10 B 38 49033 M 42 10 A 68 57242 F 45 7 0 25 24395 M 31 5 A 27 52111 M 56 5 A 62 26491 F 46 7 A 21 49033 M 54 5 B 58 49033 M 54 10 A 66 37292 M 47 1 A 6 49033 M 42 10 A 51 35200 F 38 1 B 35 35423 M 44 1 A 24 27525 F 38 3 A 64 53174 M 45 5 A 39 56294 F 44 6 C 42 52722 M 38 19 53174 M 50 5 A 13 56294 M 49 10 B 23 62530 M 50 10 B(a) Find the means salary for each training level. In your opinion do you think the means salary are equal, or somewhat equal or somewhat not equal, etc. (b) Determine whether there was a difference in the mean salary among the training levels (use 5% level of significance). (c) At 5% level of significance, can you conclude that the population variances are equal? Compare/comment your result obtained in this question to your opinion in question 4. (d) Use the Tukey procedure to examine mean salary differences among the training groups. What conclusions can you reach with respect to the mean salary differences? In your case, is it necessary to perform the Tukey procedure? Why or why not