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 A
Program B
Program C
Program D
150
150
185
175
130
120
220
150
120
135
190
120
180
160
180
130
145
110
175
175
?
a.State the null and alternative hypotheses.b.Construct an ANOVA table.c.As the statistical consultant to Ahmadi, what would you advise them? Use a .05 level of significance. Use both the critical and p-value approaches.d.Use Fisher's LSD procedure and determine which population mean (if any) is different from the others. Let ? = .05.
What will be an ideal response?
?
| a. | ||||
| H0: ?1 = ?2 = ?3 = ?4 Ha: At least one mean is different | ||||
| b. | ||||
| Source | Sum of Squares | df | Mean Square | F |
| Between | 8750 | 3 | 2916.67 | 6.14 |
| Error | 7600 | 16 | 475 | |
| Total | 16,350 | 19 | ||
| c. Critical F = 3.24; p-value is less than .01; reject H0 and conclude there is a difference in the mean productivity between the four programs. | ||||
| d. LSD = 29.22; the mean of population C is different from the others. | ||||
You might also like to view...
Which of the following explains why you are preparing the report and what you plan to cover in the body of the report?
A) Opening statement B) Statement of purpose C) Infinitive phrase D) Work plan E) Executive dashboard
What has been shown to be an extremely useful self-leadership strategy for losing weight?
a. Self-talk and self-punishment b. Mental imagery and self-punishment c. Self-punishment d. Self-talk and mental imagery
A major drawback of using a low-cost provider strategy is
A. capturing volume gains and achieving economies of scale. B. relying on approaches to reduce costs that can be easily copied. C. development of cost-saving technological breakthrough that cannot be readily adopted by rival firms. D. beneficial and sustainable cost reduction. E. industry cost leadership.
Many companies find themselves in the position of having to manage expectations downward.
Answer the following statement true (T) or false (F)