When the variation associated with blocks is removed from the ...

[xclash]

When the variation associated with blocks is removed from the data, SSE increases.
  Indicate whether the statement is true or false

Question 2

Assume that the control limits of an x chart are defined as 2 standard errors above and below the centerline. Calculate the probability that a sample mean falls outside the control limits when the process is in fact under control.

[josephsuarez]

Answer to Question 1

F

Answer to Question 2

P = P ( z  > 2) = P (z < -2) + P (z > 2) = 2(.50 - .4772) = .0456