Author Question: Process control charts, such as the x and p-charts, are used to provide signals to indicate when the ... (Read 109 times)

bobbysung · **on:** Jul 24, 2018

Process control charts, such as the x and p-charts, are used to provide signals to indicate when the output of a process is out of control.
Indicate whether the statement is true or false

Question 2

Like that of the Student t-distribution, the shape of the chi-squared distribution depends on:
a. the population size
b. the number of its degrees of freedom
c. the population standard deviation
d. whether the population is unimodal or bimodal
e. none of these