A manufacturer of automobile transmissions uses four different processes. Management ordered a study of the production c
Posted: Mon Jul 11, 2022 11:27 am
A manufacturer of automobile transmissions uses four different processes. Management ordered a study of the production costs to see if there is a difference among the four processes. The sum of squared differences between each observation and the mean Σ(x-x)² is given below. N Σ(x-x² Process 1 126.29 10 Process 2 233.34 10 Process 3 166.79 10 Process 4 77.57 10 The total sum of squares for the data SS Total = 1099.61 a. In an ANOVA table, what are the degrees of freedom for the treatment source of variation? b. In an ANOVA table, what are the degrees of freedom for the error source of variation? c. In an ANOVA table, what are the total degrees of freedom? d. State the null hypothesis and the alternate hypothesis e. What is the critical value of F at the 5% level of significance? f. What is the computed value of F? 8. What is the decision regarding the null hypothesis at the 5% significance level?