In employing the randomized block design, the primary interest ...

[james0929]

In employing the randomized block design, the primary interest lies in reducing sum of squares for ___________________ _.
 Fill in the blank(s) with correct word

Question 2

For an x control chart, you test a series of sample means. For each series of samples, we want to determine whether there is sufficient evidence to infer that the process mean has changed (i.e. reject H0: the process is under control). Under what situation would you reject the null hypothesis based on the control chart?

[Heffejeff]

Answer to Question 1

error
SSE

Answer to Question 2

We reject the null hypothesis if at any time the sample mean falls outside the control limits set by the control chart. (Or due to other detectable patterns.)

[james0929]

Gracias!

[juliaf]

Great answer, keep it coming