=+30. Gas prices 2013. We have data on the weekly average retail price (cents per gallon) of

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=+30. Gas prices 2013. We have data on the weekly average retail price (cents per gallon) of regular gas nationwide from 2011 through June 2013. Here’s a time series plot.

Time 30 60 90 120 Gas Price 3.25 3.50 3.75 4.00 Here are a 4-point moving average and a 3-term autoregressive model fit to these data.

M19_SHAR8696_03_SE_C19.indd 711 14/07/14 7:37 AM 712 CHAPTER 19 Time Series Analysis Time 30 60 90 120 Gas Price 3.25 3.50 3.75 4.00

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Related Book For  book-img-for-question

Business Statistics Plus Pearson Mylab Statistics With Pearson Etext

ISBN: 978-1292243726

3rd Edition

Authors: Norean R Sharpe ,Richard D De Veaux ,Paul Velleman

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