etext problems week 5

etext problems week 5 - 1.Individual Assignment...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
12.48 (a) Write the fitted regression equation. Y = 30.7963 + 0.0343X (b) State the degrees of freedom for a twotailed test for zero slope, and use Appendix D to find the critical value at  α df = 33 ; critical value is 2.035 (see page 782) (c) What is your conclusion about the slope? Since the p-value is 0.0068 (less than 1%), the true value is not zero. (d) Interpret the 95 percent confidence limits for the slope. We are 95% confident that the slope is between 0.0101 and 0.0584 (e) Verify that F = t2 for the slope. 2.889^2 = = 8.346321 (rounded is 8.35) 12.5 (a) Write the fitted regression equation. Y = 0.0452X + 6.5763 (b) State the degrees of freedom for a two tailed test for zero slope, and use Appendix D to find the critical value at  α df = 62 crit value: t = 2.00 (c) What is your conclusion about the slope? The p-value is less than 5% so reject Ho that the slope is zero.
Background image of page 1

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

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 2

etext problems week 5 - 1.Individual Assignment...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online