Consider the standardized variable z = b1 1 /Sxx . a. Identify its distribution. b. Why

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Consider the standardized variable z = b1 − β1

σ/√Sxx

.

a. Identify its distribution.

b. Why can’t it be used as the test statistic for a hypothesis test concerning β1?

c. What statistic is used? What is the distribution of that statistic?

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Introductory Statistics

ISBN: 9781292099729

10th Global Edition

Authors: Neil A. Weiss

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