STA641 Quiz May 2026

VU QUIZ REPORT

Subject: STA641

Quiz Completed: 19/05/2026, 20:52:50 Total Questions: 10

When the sample are constant and are known then we will use A. P chart

B. C charts

C. Option C not found D. Option D not found

There are …. types of control charts A. Three B. Five

C. Two

D. Four

Selected Answer: C

When a character of interest is measured on an interval or a ratio scale, a…… control chart is used to monitor the process. A. Attribute

B. Variable

C. Option C not found D. Option D not found Shewhart introduced the control chart as a tool for distinguishing between the two causes of variation, in

A. May 16, 1924

B. May 16, 1930 C. May 16, 1840 D. August 16, 1924

Control charts for variables monitor characteristics that can be

A. Measured

B. Counted C. Option C not found D. Option D not found

Control charts originally developed by A. John Tukey

B. Walter A. Shewhart

C. Susan Murphy D. R.A Fisher

A graph used in SPC that shows weather a sample of data falls within the normal ……. of variation.

A. Standard deviation

B. Mode C. Mean D. Range Expected number of samples taken before shift is detected is called

A. Average Run Length (ARL)

B. Average mean Length (AML) C. Option C not found D. Option D not found

Control charts for attributes monitor characteristics that can be A. Measured

B. Counted

C. Option C not found D. Option D not found

Control charts are the major tools for ……. in SPC tool kit. A. Trimming the data B. Organizing the data C. Winsorizing the data