# CH17 - Statistics Assignment CH17 17.1 a...

This preview shows pages 1–3. Sign up to view the full content.

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: Statistics Assignment CH17 17.1 a. b. &#2;&#0; &#0; &#0; &#0;&#0; &#0; &#24;&#253;Ø ”“*&#0; c. &#2;&#0; &#0; &#0; &#0;&#0; &#0; &#24;&#253;Ø ”“*&#0; 17.2 a. It seems that the advertising and sales are linearly related . b. According to Excel: 9.1 Advertising 0.06 The sample least squares line: The coefficient tells us that for each additional thousand dollars paid for advertiseme increased, sales increase by 0.058231 million dollars on average. Y-intercept is me 17.3 a. &#2;&#0; &#2;&#0; 475.17 Rate-39.17 The regression line: b. For each additional one percent mortgage rates increased, 39.1667housing starts d on average. Y-intercept is meaningless. 17.6 a. b. &#2;&#0; &#2;&#0; 3.64 Length 0.27 The regresion line: 11 9670103 P†Àg+ 0.516 33.73 10 20 30 40 50 60 70 80 90 100 110 5 10 15 20 Scatter Diagram Advertising Sales 10 20 30 40 50 60 70 5 10 15 20 25 30 Scatter Diagram Length Test c. For each additional second increased in commercial, the scores of the memory test by 0.267483 on average. Y-intercept is meaningless 17.8 a....
View Full Document

## This note was uploaded on 05/17/2010 for the course ECON 31211 taught by Professor Hsu during the Spring '10 term at National Tsing Hua University, China.

### Page1 / 14

CH17 - Statistics Assignment CH17 17.1 a...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online