In the following regression, X = monthly maintenance spending (dollars), Y = monthly machine downtime (hours), and n = 15 copy machines.
(a) Write the fitted regression equation.
(b) State the degrees of freedom for a two-tailed test for zero slope, and use Appendix D to find the critical value at a = .05.
(c) What is your conclusion about the slope?
(d) Interpret the 95 percent confidence limits for the slope.
(e) Verify that F = r2 for the slope.
(f) In your own words, describe the fit of this regression.
Recently Asked Questions
- At the beginning of the year , Jill ’ s basis in her 40 percent limited partnership interest was $ 10,000 . During the year , the partnership reported a loss
- A company has sales in units of 2,600 . There are 1,400 units of opening stock while the closing stock is planned to be 1,800 units . What production is needed
- Which of the following organizations would be covered by the AICPA Audit and Accounting Guide Not-for-Profit Organizations ?