Business Statistics

Chapter 16 | Time Series and Index Numbers 605

tabLe 16.17

Deseasonalized data for Example 16.7 (Continued)

Col 1 Col 2 Col 3 Col 4 Col 5 Col 6

Year Quarter Production Seasonal indexes (S) Desonalized data (T

.

C

.

R) Desonalized data

(rounded) (T

.

C

.

R )

2004 1 2400 1.0119 2371.775867 2372

2 2450 1.0284 2382.341501 2382

3 2300 0.9909 2321.122212 2321

4 2270 0.9686 2343.588685 2344

2005 1 2500 1.0119 2470.599862 2471

2 2560 1.0284 2489.303773 2489

3 2400 0.9909 2422.040569 2422

4 2350 0.9686 2426.182119 2426

FigUre 16.42

Minitab output (partial) for

Example 16.7

FigUre 16.43

Graph of original data and

seasonally adjusted data for

Example 16.7 produced ...