Part 1

Emergency calls to the 911 system of Durham, North Carolina, for the past 24 weeks are shown in the table below.

Part 2

Assume a starting forecast of

50.00

for week 1 and an initial trend of zero. Using smoothing constants

=0.35

and

=0.20,

the forecasts for weeks 2 through 20 have been developed and are provided below. Continuing with the given information, the forecast (Smoothed

(Ft)

and Including Trend

(FITt))

and Trend Estimate

(Tt)

for weeks 21 through 25 are (round your responses to two decimal places):

Week	Calls	Smoothed Value (Ft)	Trend Estimate (Tt)	Forecast Including Trend (FITt)
1	50	50.00	0.00	50.00
2	35	50.00	0.00	50.00
3	26	44.75	1.05	43.70
4	39	37.51	2.29	35.22
5	46	36.54	2.03	34.51
6	36	38.53	1.23	37.30
7	19	36.85	1.32	35.53
8	29	29.74	2.48	27.26
9	35	27.87	2.36	25.51
10	20	28.83	1.70	27.13
11	16	24.63	2.20	22.43
12	39	20.18	2.65	17.53
13	56	25.04	1.15	23.89
14	35	35.13	1.10	36.23
15	25	35.80	1.01	36.81
16	54	32.68	0.18	32.86
17	54	40.26	1.66	41.92
18	39	46.15	2.51	48.66
19	34	45.28	1.83	47.11
20	60	42.52	0.91	43.43
21	75	_______	_______	_______