Author Question: Summarize the Empirical Rule. What will be an ideal response?[br][br][b][color=#566D7E]Question ... (Read 80 times)

Medesa · **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.

joneynes · **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