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Author Question: A production process that is in control has a mean () of 80 and a standard deviation () of 10. a. ... (Read 87 times)

chandani

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on: Jun 24, 2018
A production process that is in control has a mean () of 80 and a standard deviation () of 10.
 a. Determine the upper and the lower control limits for sample sizes of 25.
  b. Five samples had means of 81, 84, 75, 83, and 79 . Construct an x-bar chart and explain whether or not the process is in control.

Question 2

Time series data can exhibit seasonal patterns of less than one month in duration.
  Indicate whether the statement is true or false


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flexer1n1

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Reply #1 on: Jun 24, 2018
Answer to Question 1

a. LCL = 74, UCL = 86
b. The process is in control.

Answer to Question 2

T


chandani

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Reply 2 on: Jun 24, 2018
Great answer, keep it coming :)

diana chang

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Reply 3 on: Yesterday
Wow, this really help

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