Question

1. A) Researchers are assessing the effects of ambient noise level and plant location on worker productivity by a two-factor ANOVA without replication, at alpha=0.05. The results are summarized below (some information is missing but can be worker out for the full information ANOVA table). The between rows (between plant locations) sum of squares must be:

Source of Variation	Sum of Squares	Degrees of Freedom	Mean Square	F Statistic	F Critical Value
Plant location (row effect)		3			3.86
Noise Level( Column Effect)	8.4075		2.8025		3.86
Error	3.5225	9	0.3914
Total	14.9375

1. 4.5231
2. 3.0075
3. 11.4151
4. 6.5318

B) What are the degrees of freedom for ambient noise level?

a) 3

b) 4

c) 2

d) 5

C) The F statistic for plant location is equal to

a) 5.74

b) 3.12

c) 2.56

d) 1.24

C) Researchers are assessing the effects of ambient noise level and plant location on worker productivity by a two-factor ANOVA without replication, at alpha=0.05. The results are summarized below. The between rows (between plant locations) mean square must be equal to 1.0025.(Based on the chart above) True or False

D) Researchers are assessing the effects of ambient noise level and plant location on worker productivity by a two-factor ANOVA without replication, at alpha =0.05. The results are summarized below. By comparing the F statistic for ambient noise level with the F critical value, we fail to reject the null hypothesis that ambient noise level has on effect on the work productivity.(Based off the chart above)  True or False

Answer 1