# Question

The data shown in Table 6E.2 are x and R values for 24 samples of size n = 5 taken from a process producing bearings. The measurements are made on the inside diameter of the bearing, with only the last three decimals recorded (i.e., 34.5 should be 0.50345).

(a) Set up x and R charts on this process. Does the process seem to be in statistical control? If necessary, revise the trial control limits.

(b) pˆ Pr{x LSL} Pr{x USL} Pr{x 20} Pr{x 40} Pr{x 20} 1Pr{x 40}

(a) Set up x and R charts on this process. Does the process seem to be in statistical control? If necessary, revise the trial control limits.

(b) pˆ Pr{x LSL} Pr{x USL} Pr{x 20} Pr{x 40} Pr{x 20} 1Pr{x 40}

## Answer to relevant Questions

Michelson actually made 100 measurements on the velocity of light in five trials of 20 observations each. The second set of 20 measurements is shown in Table 6E.28 (a) Plot these new measurements on the control charts ...Reconsider the polymer viscosity data in Exercise 6.63. Use the median of the span-two moving ranges to estimate σ and set up the individuals control chart. Compare this chart to the one originally constructed using the ...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 fraction nonconforming is to be established using a center line of p = 0.10. What sample size is required if we wish to detect a shift in the process fraction nonconforming to 0.20 with probability ...A fraction nonconforming control chart with center line 0.10, UCL = 0.19, and LCL = 0.01 is used to control a process. (a) If three-sigma limits are used, find the sample size for the control chart. (b) Use the Poisson ...Post your question

0