Process control charts, such as the x and p-charts, are used to ...

[bobbysung]

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

[bobsmith]

Answer to Question 1

T

Answer to Question 2

B

[bobbysung]

Great answer, keep it coming

[xiaomengxian]

Thanks for the timely response, appreciate it