Question

An X-bar R chart was prepared for an operation using twenty samples with 5 pieces in each sample. X-bar-bar was found to be 33.6 and R-bar was 6.2. During production, a sample of 5 was taken and the pieces measured 36, 43, 37, 25, and 38. At the time this sample was taken: Select the correct answer: a. Both the average and range were within control limits. b. Neither the average nor range were within control limits. c. Only the average was outside control limits. d. Only the range was outside control limits.

Name: an x bar r chart was prepared for an operation using twenty samples with 5 pieces in each sample x bar bar was found to be 336and rbar was 62 during production a sample of 5 was taken and th 90678
Uploaded: 2023-08-18T18:17:05-08:00
Duration: 6 min 19 s
Channel: Akash M
Description: an x bar r chart was prepared for an operation using twenty samples with 5 pieces in each sample x bar bar was found to be 336and rbar was 62 during production a sample of 5 was taken and th 90678

          An X-bar R chart was prepared for an operation using twenty samples with 5 pieces in each sample. X-bar-bar was found to be 33.6 and R-bar was 6.2. During production, a sample of 5 was taken and the pieces measured 36, 43, 37, 25, and 38. At the time this sample was taken: Select the correct answer:
a. Both the average and range were within control limits.
b. Neither the average nor range were within control limits.
c. Only the average was outside control limits.
d. Only the range was outside control limits.

Added by Brianna R.

Principles of Economics

Gregory Mankiw 8th Edition

Instant Answer

Solved by Expert Akash M

08/18/2023

Step 1

Calculate the control limits for the X-bar chart and the R chart using the given information. X-bar-bar = 33.6 R-bar = 6.2 n = 5 (number of pieces in each sample) Number of samples (k) = 20 Show more…

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An X-bar R chart was prepared for an operation using twenty samples with 5 pieces in each sample. X-bar-bar was found to be 33.6 and R-bar was 6.2. During production, a sample of 5 was taken and the pieces measured 36, 43, 37, 25, and 38. At the time this sample was taken: Select the correct answer: a. Both the average and range were within control limits. b. Neither the average nor range were within control limits. c. Only the average was outside control limits. d. Only the range was outside control limits.