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Below is a regression using X average price Y

Below is a regression using X = average price, Y = units sold, n = 20 stores.

(a) Write the fitted regression equation.

(b) Write the formula for each t statistic and verify the t statistics shown below.

(c) State the degrees of freedom for the t tests and find the two-tail critical value for t by using Appendix D.

(d) Use Excel's function = T.DIST.2T (t, d.f.) to verify the p-value shown for each t statistic (slope, intercept).

(e) Verify that F = t2 for the slope.

(f) In your own words, describe the t of this regression.

(a) Write the fitted regression equation.

(b) Write the formula for each t statistic and verify the t statistics shown below.

(c) State the degrees of freedom for the t tests and find the two-tail critical value for t by using Appendix D.

(d) Use Excel's function = T.DIST.2T (t, d.f.) to verify the p-value shown for each t statistic (slope, intercept).

(e) Verify that F = t2 for the slope.

(f) In your own words, describe the t of this regression.

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