# Question: Consider the data set shown in Table 18 5 3 representing the

Consider the data set shown in Table 18.5.3, representing the thicknesses of a protective coating.

a. Find the average, X, and the range, R, for each sample.

b.* Find the overall average, X, and the average range, R.

c.* Find the center line for the X chart.

d.* Find the control limits for the X chart.

e. Draw the X chart.

f. Comment on what you see in the X chart. In particular, is this process in control? How do you know?

g. Write a paragraph, as if to your supervisor, summarizing the situation and defending the action you feel is appropriate.

QUESTION CONTINUE TO NEXT PAGE…….

a. Find the average, X, and the range, R, for each sample.

b.* Find the overall average, X, and the average range, R.

c.* Find the center line for the X chart.

d.* Find the control limits for the X chart.

e. Draw the X chart.

f. Comment on what you see in the X chart. In particular, is this process in control? How do you know?

g. Write a paragraph, as if to your supervisor, summarizing the situation and defending the action you feel is appropriate.

QUESTION CONTINUE TO NEXT PAGE…….

## Answer to relevant Questions

A consultant has just presented a very complicated statistical analysis, complete with lots of mathematical symbols and equations. The results of this impressive analysis go against your intuition and experience. What should ...Distinguish between primary and secondary data. Table 2.6.4 is an excerpt from a salesperson’s database of customers. a. What is an elementary unit for this data set? b. What kind of data set is this: univariate, bivariate, or multivariate? c. Which of these variables ...How can you interpret the logarithm of a number? Continue with the data set in Table 18.5.3, representing the thicknesses of a protective coating. a.* Find the center line for the R chart. b.* Find the control limits for the R chart. c. Draw the R chart. d. Comment on what ...Post your question