Answered: a. plot the data on a graph showing the…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

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Jean and Dinah had been in business for two years producing umbrellas to be sold to the cruise ship passengers when they docked. They found that they are constantly out of umbrellas and had to rush producions which has resulted in the increase of their production cost. Jean has a nephew who is enrolled in the UWIOC and he advised her to prepare forecasted qualities using the sales that they made over the past months. The data below represents sales for the last 9 months. In order to assist Jean and Dinah you are asked to;

a. plot the data on a graph showing the trend

b. determine the equation of the trend line

c. predict sales for month 10 and 11.

Months	Sales
1	44
2	52
3	50
4	54
5	55
6	55
7	60
8	56
9	62

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