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Author Question: The control limits for an np chart are how many standard deviations above and below the expected ... (Read 97 times)

Starlight

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on: Jun 24, 2018
The control limits for an np chart are how many standard deviations above and below the expected number of defectives?
 a. one
  b. two
  c. three
  d. four

Question 2

Forecast errors
 a. are the difference in successive values of a time series
  b. are the differences between actual and forecast values
  c. should all be nonnegative
  d. should be summed to judge the goodness of a forecasting model


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briezy

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

c

Answer to Question 2

B


Starlight

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Reply 2 on: Jun 24, 2018
Wow, this really help

xiazhe

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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