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A computer software company wants to use -period moving averages to forecast the number of users who download its anti-virus software. The numbers of users (in thousands) for the most recent periods are shown in the middle column of the table below. Also shown is a time series plot of the data.
In the far-right column of the table are the -period moving averages for the data. Fill in both blanks in this column. Round your responses to at least two decimal places.

What is the answer to the question marks?

1 195.9 NA
2 205.8 NA
3 205.4 205.04
4 208.9 206.54
5 209.2 207.54
6 203.4 208.2
7 210.8 209.2
8 208.7 ?
9 213.9 ?
10 210.2 210.88
11 206.5 212.2
12 215.1 213.24
13 215.3 NA
14 219.1 NA

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Solution Summary

A computer software company wants to use -period moving averages to forecast the number of users who download its anti-virus software. The numbers of users (in thousands) for the most recent periods are shown in the middle column of the table below. Also shown is a time series plot of the data.

Solution provided by:
Gaurav Agarwal, MS
Education
  • BE, Bangalore University, India
  • MS, University of Wisconsin-Madison
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