Question

Trends and Regression Calculate the Linear Trend Line for the following data Using the Liner Trend...

Trends and Regression

  1. Calculate the Linear Trend Line for the following data
  2. Using the Liner Trend Line, what sales do you forecast for July 2016 (plot the values)
  3. Using the Linear Trend Line, what sales do you forecast for July 2017 (plot the values)
  4. Comment on the quality/reliability of your forecasts - what concerns should you have regarding the accuracy of your linear trend line forecast?
  5. Select an alternative Trend Line that you think best fits the historical data. Make the same forecasts for July 2016 and July 2017 and plot them. What are the two values?
  6. Is your forecast for using the alternative trend line more or less reliable, feasible than the Linear Trend Line above?

Month

Sales

Month

Sales

Month

Sales

Oct-12

-1.94

Oct-13

5.73

Oct-14

8.63

Nov-12

0.06

Nov-13

5.80

Nov-14

7.75

Dec-12

1.76

Dec-13

7.37

Dec-14

7.66

Jan-13

1.78

Jan-14

5.53

Jan-15

9.79

Feb-13

3.13

Feb-14

7.22

Feb-15

9.53

Mar-13

4.25

Mar-14

6.54

Mar-15

7.08

Apr-13

4.21

Apr-14

9.42

Apr-15

9.79

May-13

1.94

May-14

7.97

May-15

9.44

Jun-13

5.62

Jun-14

8.85

Jun-15

9.26

Jul-13

3.11

Jul-14

9.16

Jul-15

7.71

Aug-13

5.28

Aug-14

9.88

Aug-15

9.63

Sep-13

5.21

Sep-14

10.09

Sep-15

8.95

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