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Author Question: What percentage of measurements would you expect to be between 71.60 and 99.48? What will be an ... (Read 93 times)

drink

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on: Jun 24, 2018
What percentage of measurements would you expect to be between 71.60 and 99.48?
 
  What will be an ideal response?

Question 2

The simple exponential smoothing model is most appropriate for a time series that is:
 
  A) seasonal and has no consistent upward or downward trend.
  B) seasonal and has a consistent upward or downward trend.
  C) nonseasonal and has a consistent upward or downward trend.
  D) nonseasonal and has no consistent upward or downward trend.


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TDubDCFL

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

Since the distribution appears to be relatively bell-shaped, the Empirical Rule applies. The interval (71.60, 99.48 ) represents  2 standard deviations from the mean, so one would expect approximately 95 of the measurements to lie within this interval.

Answer to Question 2

D


drink

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Reply 2 on: Jun 24, 2018
:D TYSM

daiying98

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

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