Author Question: The cause of a change in a process variable being monitored is regarded as random variation if it ... (Read 117 times)

Themember4 · **on:** Jul 24, 2018

The cause of a change in a process variable being monitored is regarded as random variation if it can be found and corrected.
Indicate whether the statement is true or false

Question 2

In what type of test is the variable of interest the difference between the values of the observations rather than the observations themselves?
a. A test for the equality of variances from two independent populations.
b. A test for the difference between the means of two dependent populations.
c. A test for the difference between the means of two independent populations.
d. All of these.
e. None of these.