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Author Question: A sample is representative of the entire data population only if it: a. includes all the ... (Read 114 times)

geodog55

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on: Jun 24, 2018
A sample is representative of the entire data population only if it:
 a. includes all the observations as the original data repository.
  b. can be used to draw the same conclusions as the database.
  c. is drawn sequentially from the given database.
  d. is small enough to be manipulated quickly.

Question 2

A 3-sigma mean chart for a normally distributed random variable shows that one mean lies out of the control limits. What is the probability that this observation is a result of random chance?


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tjayeee

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

B

Answer to Question 2

0.0026


geodog55

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

raenoj

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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