Lecture 2_Powerpoint2007

# Lecture - Click to edit Master subtitle style Lecture 2 The forecast process data consideration and model selection Data pattern • Trend •

This preview shows pages 1–10. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Click to edit Master subtitle style 8/5/11 Lecture 2 The forecast process, data consideration and model selection 8/5/11 Data pattern • Trend • Seasonal • Cyclical • irregular The forecast process, data consideration and model selection 8/5/11 Trend 8/5/11 Seasonal, trend and cyclical pattern The forecast process, data consideration and model selection 8/5/11 Linear and non-linear trend 8/5/11 Statistical Review • Descriptive Statistics – Mean – Median – Mode – Standard deviation – variance The forecast process, data consideration and model selection 8/5/11 Normal Distribution The forecast process, data consideration and model selection 8/5/11 Normal distribution (cont’d) σ μ 1 ± includes about 68% of the area σ μ 2 ± σ μ 3 ± includes about 95% of the area includes about 99% of the area Ζ- distribution : σ μ- = x Z (2. 1) The forecast process, data consideration and model selection 8/5/11 Example 2.1 Let us calculate the Z-values that correspond to Χ =40 and to Χ =65, given std =10 and a mean value of 50....
View Full Document

## This document was uploaded on 08/05/2011.

### Page1 / 25

Lecture - Click to edit Master subtitle style Lecture 2 The forecast process data consideration and model selection Data pattern • Trend •

This preview shows document pages 1 - 10. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online