Suppose we have the following annual sales data for an automobile dealership: Year                Sales                Trend 2009                121                     1 2010                187                     2 2011                165                     3 2012                134                     4 2013                155                    ...

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Statistics

  1. Suppose we have the following annual sales data for anautomobile dealership:

Year               Sales               Trend

2009               121                    1

2010               187                    2

2011               165                    3

2012               134                    4

2013               155                    5

2014               167                    6

2015               200                    7

2016               206                    8

2017               221                   9

2018               231                10

We want to forecast sales for 2019 and 2020 using either asimple trend model or a quadratic trend model. Use a within sampleforecasting technique to determine the best model using the RMSEmeasure discussed in lecture. Once this model has been determined,provide actual forecasts for 2019 and 2020. Report the two RMSEvalues in your pdf or fax submission along with the actualforecasts. Submit your Excel file used to create these answers

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AnswerGiven ThatSuppose we have the following annual sales data for anautomobile dealershipWe want to forecast sales for 2019 and 2020 using either asimple trend model or a quadratic trend model Use a within sampleforecasting technique to determine the best model using the RMSEmeasure discussed in lectureGivenThe linear trend model that we want to fit isSales Wheret trendis    See Answer
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