TABLE 17-7
A supplier of silicone sheets for producers of computer chips wants to evaluate her manufacturing process. She takes samples of size 5 from each day's output and counts the number of blemishes on each silicone sheet. The results from 20 days of such evaluations are presented below.
-Referring to Table 17-7, based on the R chart, it appears that the process is out of control.

Question

TABLE 17-7
A supplier of silicone sheets for producers of computer chips wants to evaluate her manufacturing process. She takes samples of size 5 from each day's output and counts the number of blemishes on each silicone sheet. The results from 20 days of such evaluations are presented below. 
-Referring to Table 17-7, based on the R chart, it appears that the process is out of control.

Quizplus · Accepted Answer

Without the specific data from Table 17-7 and the R chart, it is not possible to determine if the process is out of control.

TABLE 17-7 A Supplier of Silicone Sheets for Producers of Computer Chips