Question: A Quality Analyst wants to construct a control chart for determining whether three machines, all producing the same product, are under control with regard to

A Quality Analyst wants to construct a control chart for determining whether three machines, all producing the same product, are under control with regard to a particular quality variable. Accordingly, he sampled four units of output from each machine, with the following results : Machine #1 measurements [21, 16, 16, 21]; Machine #2 measurements [ 18, 14, 19, 16]; Machine #3 measurements [ 13, 24, 13, 21]. Using the factors for three sigma control limits, what are x-bar chart upper and lower control limits?

a.

19.56and 15.78

b.

22.78and 12.56

c.

38.67and -3.333

d.

24.81and 10.53

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related General Management Questions!

Q:

A quality analyst wants to construct a control chart for determining whether three machines, all producing the same product, are in control with regard to a particular quality variable. Accordingly,...

Q:

A quality analyst wants to construct a control chart for determining whether three machines, all producing the same product, are in control with regard to a particular quality variable. Accordingly, h

Q:

A quality analyst wants to construct a control chart for determining whether three machines, all producing the same product, are in control with regard to a particular quality variable. Accordingly, h

Q:

A quality analyst wants to construct a control chart for determining whether three machines, all producing the same product, are in control with regard to a particular quality variable. Accordingly, h

Q:

A quality analyst wants to construct a control chart for determining whether three machines, all producing the same product, are in control with regard to a particular quality variable. Accordingly,...

Q:

A quality analyst wants to construct a control chart for determining whether three machines, all producing the same product, are in control with regard to a particular quality variable. Accordingly,...

Q:

question below A Quality:r Analyst wants to construct a control chart for determining whether three machines, all producing the same product, are under control with regard to a particular dualityr...

Q:

A Quality Analyst wants to construct a control chart for determining whether four machines, all producing the same product, are under control with regard to a particular quality attribute....

Q:

QUESTIONS A quality analyst wants to construct a control chart for determining whether three machines, all producing the same product. are under control with regard to a particular quality variable....

Q:

A Quality Analyst wants to construct a control chart for determining whether three machines, producing the regard to particular quality variable. Accordinglyhe analyzed four units of output (...

Q:

What manager is usually in the best position to influence the direct-material quantity variance?

Q:

(d) In a Hittorf cell with silver electrode contains a 0.01 molal Ag NO3 solution and a silver coulometer is connected in series. Electrolysis is continued for some time. Analysis after electrolysis,...

Q:

Which of the following investments would provide the largest amount of income and the most predictable source of income? Multiple Choice derivatives certificates of deposit common stock savings...

Q:

atch the compensation objectives with their meanings. Efficiency Efficiency drop zone empty. Fairness Fairness drop zone empty. Compliance Compliance drop zone empty. Improving performance and...