Stats Project 5

# Stats Project 5 - Joshua Sbicca STA 6126 Homework Project#5...

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

Joshua Sbicca STA 6126 – Homework Project #5 12/3/08 Let Y be the amount of acreage of cotton planted in the year. Let X be the adjusted combined price of cotton and cottonseed in the previous year (last variable in data file). Complete the following parts: Briefly describe the parameter β in the regression model Y = α + β X + ε o β is the slope which equals the change in Y for a one unit increase in X. Obtain a plot of Y versus X including the fitted regression equation. Write out the fitted equation: bX a Y + = ^ o ^ Y = 27346.929 + 517.162 X

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

View Full Document
Give the estimate of the conditional standard deviation: 2 2 ^ ^ - - = n Y Y σ o 6501.957 Give the correlation coefficient: ( 29 ( 29 ( 29 ( 29 - - - - = 2 2 Y Y X X Y Y X X r o .307 Give the coefficient of determination: TSS SSE TSS r - = 2 o .094 Conduct the t-test to test H 0 : β =0 vs H A : β ≠0 based on the 0.05 significance level. o
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 3

Stats Project 5 - Joshua Sbicca STA 6126 Homework Project#5...

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

View Full Document
Ask a homework question - tutors are online