Author Question: In the two-factor ANOVA where a is the number of factor A levels, b is the number of factor B ... (Read 130 times)

CBme · **on:** Jun 24, 2018

In the two-factor ANOVA where a is the number of factor A levels, b is the number of factor B levels, r is the number of replicates, and n is the total number of observations, the number of degrees of freedom for error is:
a. (a - 1)(b - 1)
b. abr - 1
c. r(a - 1)(b - 1)
d. n - ab

Question 2

To determine whether the process distribution standard deviation has changed, we use a(n):
a. x chart.
b. S chart.
c. p chart.
d. All of these choices are true.