In a two-factor ANOVA, where a is the number of factor A levels ...

[olgavictoria]

In a two-factor ANOVA, where a is the number of factor A levels and b is the number of factor B levels, the number of degrees of freedom for the interaction term is
 a. (a - 1)(b - 1)
  b. ab - 1
  c. (a - 1) + (b - 1)
  d. Unknown; need to know the number of replicates.

Question 2

The mean of the sample means and the pooled standard deviation of 40 samples of size 5 taken from a production process under control are found to be 400 and 15, respectively. The lower control limit for the x chart is:
 a. 460.37
  b. 392.88
  c. 379.88
  d. None of these choices.

[Pamela.irrgang@yahoo.com]

Answer to Question 1

A

Answer to Question 2

C

[olgavictoria]

Correct answers!

[Pamela.irrgang@yahoo.com]

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