e. What are the monthly indexes? (Round your answers to 3 decimal places.) Month 1 2 3 4 5 6 7 8 9 10 11 12 Index f. Forecast sales for January, February, March, and April of 2019. (Round your answers to 2 decimal places.) Period 25 Sales Period 26 Sales Period 27 Sales Period 28 Sales Forecasted Slaes million million million million
The following data report total, monthly U.S. gasoline sales in millions of dollars from January 2017 to
December 2018. (To find the data, go to the site https://www.census.gov/retail/index.html#mrts, find
“Monthly Retail Trade Report,” then select “Time Series/Trend Charts.”)
Year Month Sales
($ millions)
2017 Jan $35,630
2017 Feb 33,972
2017 Mar 38,622
2017 Apr 38,973
2017 May 40,739
2017 Jun 40,009
2017 Jul 39,797
2017 Aug 41,217
2017 Sep 41,346
2017 Oct 41,717
2017 Nov 40,186
2017 Dec 40,046
2018 Jan 39,223
2018 Feb 37,377
2018 Mar 42,648
2018 Apr 43,109
2018 May 48,049
2018 Jun 47,546
2018 Jul 47,991
2018 Aug 48,833
2018 Sep 45,585
2018 Oct 48,342
2018 Nov 43,239
2018 Dec 39,626
Trending now
This is a popular solution!
Step by step
Solved in 5 steps with 10 images
