Question

Data collected on the yearly registrations for a Six Sigma seminar at the Quality College are shown in the following​ table:

                                                                                                                                                            

Year	1	2	3	4	5	6	7	8	9	10	11
Registrations​ (000)	4.00	5.00	4.00	4.00	9.00	9.00	6.00	9.00	11.00	16.00	12.00

​a) Calculate the forecasted registrations for years 2 through 12 using exponential​ smoothing, with a smoothing constant

​(α​)

of

0.30

and a starting forecast of

4.00

for year 1 ​(round your responses to one decimal

​place)​:

Year	1	2	3	4	5	6	7	8	9	10	11	12
Forecast​ (000)	4.00

B.

The absolute deviation based on the forecast developed for each period using the exponential smoothing method​ (with a smoothing constant (α​) = 0.35 and a starting forecast of F1 = 4.00​) adds to   (round your response to two decimal​ places).

C.

Mean absolute deviation based on the forecast developed using the exponential smoothing method​ (with a smoothing constant (α​) = 0.35 and a starting forecast of F1 = 4.00​) is

registration ​(round your response to two decimal​ places).

Answer 1

Answers

b) 24.52

Explanation

c) 2.45