An Industrial Engineer Wants to Test the Effect of Three

Multiple Choice

An industrial engineer wants to test the effect of three different ways of assembling a part on the total assembly time.Five people are randomly assigned to each of the three assembly methods,and the total assembly time (in seconds) is recorded.Calculate MST,MSE and the F-ratio.Can you reject H0 using α = 0.05? The ANOVA table is listed below. Analysis of Variance
Source Sum-of-Squares df Mean-Square F-ratio P-value
Method 985535.907
Error 276844.275
Total 1262380.182

A) MST = 492767.954; MSE = 19774.591; F-Ratio = 24.919; Yes,reject H0 using α = 0.05.
B) MST = 492767.954; MSE = 23070.356; F-Ratio = 21.359; Yes,reject H0 using α = 0.05.
C) MST = 328511.969; MSE = 23070.356; F-Ratio =14.240; Yes,reject H0 using α = 0.05.
D) MST = 328511.969; MSE = 19774.591; F-Ratio =16.613; Yes,reject H0 using α = 0.05.
E) MST = 492767.954; MSE = 21295.713; F-Ratio = 23.139; Yes,reject H0 using α = 0.05.