Question: The type II error probability for the t-test for H0: B1 = B1, 0 can be computed in a similar manner to the t-tests of

The type II error probability for the t-test for H0: B1 = B1, 0 can be computed in a similar manner to the t-tests of Chapter 9. If the true value of B1 is B1, the value =|B1, 0 – B1”/(σ√(n – 1)/Sxx is calculated and used as the horizontal scale factor on the operating characteristic curves for the t-test, (Appendix Charts VIe through VIh) and the type II error probability is read from the vertical scale using the curve for n 2 degrees of freedom. Apply this procedure to the football data of Exercise 11-4, using σ = 2.4 and B1 = -0.005, where the hypotheses are H0: B1 = - 0.01 versus H1: B1  - 0.01.

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