1. Demand for 5 weeks of jobs at a carpet-cleaning business is shown below. Use linear regression to create a trend equation for this time-series.

Week (X)	Demand (Y)
1	55
2	60
3	41
4	35
5	20

The trend equation is:

1. Y = 70.7 + 9.5X
2. Y = 70.7 + 2.5X
3. Y = 70.7 - 9.5X
4. Y = -70.7 - 2.5X

Use the following table for question 2

Week	Monday	Tuesday	Wednesday	Thursday	Friday
1	8	15	25	13	2
2	12	25	34	17	7

2. Compute and report Wednesday's Seasonal Factor.

1. 0.37
2. 0.24
3. 0.19
4. 0.42

3.Assume 5 years of monthly data was used to create a seasonally-adjusted forecasting model. Trend equation for the 5 years was found to be: y = 85 + 3.7X. Seasonal factors are reported in the table below. Compute a seasonally-adjusted forecast for quarter 2 of year 7.

QTR1	QTR2	QTR3	QTR4
0.24	0.45	0.15	0.1

1. 49.9
2. 110.9
3. 45.0
4. 23.1