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Author Question: Summarize the Empirical Rule. What will be an ideal response?[br][br][b][color=#566D7E]Question ... (Read 140 times)

Medesa

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on: Jun 24, 2018
Summarize the Empirical Rule.
 
  What will be an ideal response?

Question 2

We calculate the five-period moving average for a time series for all time periods except the:
 
  A) first five periods.
  B) last five periods.
  C) first and last period.
  D) first two and last two periods.


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joneynes

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

For distributions that are bell-shaped and symmetrical:
a) Approximately 68 of observations will fall within  1 standard deviation of the mean.
b) Approximately 95 of observations will fall within  2 standard deviations of the mean.
c) Practically all observations will fall within  3 standard deviations of the mean

Answer to Question 2

D


Medesa

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

bbburns21

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Reply 3 on: Yesterday
Excellent

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