# Question: Specifications on a cigar lighter detent are 0 3220 and 0 3200

Specifications on a cigar lighter detent are 0.3220 and 0.3200 in. Samples of size 5 are taken every 45 minutes with the results shown in Table 6E.18 (measured as deviations from 0.3210 in 0.0001 in.).

(a) Set up an R chart and examine the process for statistical control.

(b) What parameters would you recommend for an R chart for on-line control?

Excluding Sample Number 12:

(c) Estimate the standard deviation of the process.

(d) What is the process capability?

(a) Set up an R chart and examine the process for statistical control.

(b) What parameters would you recommend for an R chart for on-line control?

Excluding Sample Number 12:

(c) Estimate the standard deviation of the process.

(d) What is the process capability?

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