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  3. he following data are for calculator sales in unit

he following data are for calculator sales in units at an electronics store over the past...

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Basic Math

he following data are for calculator sales in units at anelectronics store over the past nine​ weeks:

                                                                            

Week

Sales

Week

Sales

1

4444

6

5757

2

4545

7

6565

3

4646

8

5555

4

5151

9

6464

5

5757

Use trend projection with regression to forecast sales forweeks

10minus−13.

What are the error measures​ (CFE, MSE,

sigmaσ​,

​MAD, and​ MAPE) for this forecasting​ procedure? How about

r squaredr2​?

Obtain the trend projection with regression forecast forweeks

10minus−13.

​(Enter your responses rounded to two decimal​ places.)

Period

​Forecast, Bold Upper F Subscript tFt

10

nothing

11

nothing

12

nothing

13

nothing

Obtain the error measures.

CFE: MSE:   sigmaσ: MAD: MAPE:

Find the coefficient of determination (R squared)

R squared =

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Trend projection with regression to forecast sales forweeks    See Answer
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