Carol Campus, owner of Campus Carpet Cleaning (CCC) needs a quarterly forecast of the

number of customers expected next year.

Listed below are the quarterly demands for CCC

for the past four years.

Using exponential smoothing, develop an appropriate forecasting

model that minimizes MSD and then forecast the next year (2019) by quarter using this

model.

Year

Quarter

2015

2016

2017

2018

2019

1

50

75

100

110

?

2

340

375

550

700

?

3

525

600

800

1050

?

4

100

175

275

250

?