# Question: Use all 60 observations on oxide thickness a Set up

Use all 60 observations on oxide thickness.

(a) Set up an individuals control chart with σ estimated by the average moving range method.

(b) Set up an individuals control chart with σ estimated by the median moving range method.

(c) Compare and discuss the two control charts.

(a) Set up an individuals control chart with σ estimated by the average moving range method.

(b) Set up an individuals control chart with σ estimated by the median moving range method.

(c) Compare and discuss the two control charts.

## Relevant Questions

Consider the individuals measurement data shown inTable6E.31. (a) Estimate σ using the average of the moving ranges of span two. (b) Estimate σ using s/c4. (c) Estimate σ using the median of the span-two moving ...Consider the situation described in Exercise 6.80. A critical dimension (measured in m) is of interest to the process engineer. Suppose that five fixed positions are used on each wafer (position 1 is the center) and that ...A control chart for the number of nonconforming piston rings is maintained on a forging process with np = 16.0. A sample of size 100 is taken each day and analyzed. (a) What is the probability that a shift in the process ...A control chart for fraction nonconforming indicates that the current process average is 0.03. The sample size is constant at 200 units. (a) Find the three-sigma control limits for the control chart. (b) What is the ...A process has an in-control fraction nonconforming of p = 0.02. What sample size would be required for the fraction nonconforming control chart if it is desired to have a probability of at least one nonconforming unit in the ...Post your question