Air travel on mountain airlines for the past 18 weeks was

Problem 3-14
Air travel on Mountain Airlines for the past 18 weeks was:

Week Passengers Week Passengers
1 402 10 440
2 410 11 446
3 420 12 451
4 415 13 455
5 412 14 460
6 417 15 466
7 424 16 474
8 433 17 476
9 438 18 249

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b. 

Use an appropriate technique to develop a forecast for the expected number of passengers for the next three weeks. (Round your intermediate calculations to 3 decimal places and final answers to 2 decimal places.)

Week Forecasted demand
19 
20 
21 

 

Problem 3-2

National Scan, Inc., sells radio frequency inventory tags. Monthly sales for a seven-month period were as follows:
Month Sales
(000)Units
Feb. 20
Mar. 19
Apr. 12
May. 28
Jun. 16
Jul. 22
Aug. 28

b. Forecast September sales volume using each of the following:

(1)A linear trend equation.(Round your intermediate calculations and final answer to 2 decimal places.)

Yt_____ thousands 

(2) A five-month moving average.(Round your answer to 2 decimal places.)

Moving average 21.2 thousands 

(3) Exponential smoothing with a smoothing constant equal to .30, assuming a March forecast of 19(000). (Round your intermediate calculations and final answer to 2 decimal places.)

Forecast_______thousands