15. The Ahmadi Corporation wants to increase the productivity of its line workers. Four different programs have been sug

[answerhappygod]

15 The Ahmadi Corporation Wants To Increase The Productivity Of Its Line Workers Four Different Programs Have Been Sug 1 (111.63 KiB) Viewed 59 times

15. The Ahmadi Corporation wants to increase the productivity of its line workers. Four different programs have been suggested to help increase productivity. Twenty employees, making up a sample, have been randomly assigned to one of the four programs and their output from a day's work has been recorded. You are given the results (in units/day) below. Program B Program A 150 Program C Program D 150 185 175 130 120 220 150 120 135 190 120 180 160 180 130 145 110 175 175 You tested Ho: μA = μв = μc = μD against H₁: At least one mean is different using ANOVA and obtained the following ANOVA Table. In doing your testing, you rejected the null hypothesis at the 5% level. Source Treatments Sum of Squares df 8750 Mean Square F 2916.67 6.14 3 Error 7600 16 475 Total 16,350 19 You now want to use Fisher's Least Significant Difference (LSD) Procedure to determine where the differences among means occur. Using a = 0.05, LSD equals a. 24.07 b. 28.85 c. 29.22 d. 72.41 e. LSD will be different depending on the comparison 16. Refer to question 15. Based on your use of Fisher's LSD Procedure using a = 0.05, the mean of population is different from the others. a. A b. B c. C d. D 17. Refer to question 16. If you were to instead use Bonferroni's adjustment to test for a significant difference between all pairs of means, what a would you choose to maintain an overall (experimentwise) Type I Error rate of dew=0.05? a. 0.008 b. 0.025 c. 0.050 d. 0.075 18. The Marascuilo Procedure is used to test for a significant difference between pairs of population a. proportions b. means. c. variances d. standard deviations.