A researcher conducts a hypothesis test to evaluate the effect of a treatment that is expected to increase scores. The hypothesis test produces a calculated z-score of z = 2.37. If the researcher is using a one-tailed test, what is the correct statistical decision? This cannot be answered without additional information. Reject the null hypothesis with α = .05 but not with α = .01. Fail to reject the null hypothesis with either α = .05 or α = .01. Reject the null hypothesis with either α = .05 or α = .01.

Given information Test statistic z = 2.37 P-value = P(Z > 2.37) = 1 – P(Z< 2.37) = 1 – 0.9911…

Answered: A researcher conducts a hypothesis test…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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Problem 1P

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A researcher conducts a hypothesis test to evaluate the effect of a treatment that is expected to increase scores. The hypothesis test produces a calculated z-score of z = 2.37. If the researcher is using a one-tailed test, what is the correct statistical decision?

		This cannot be answered without additional information.
		Reject the null hypothesis with α = .05 but not with α = .01.
		Fail to reject the null hypothesis with either α = .05 or α = .01.
		Reject the null hypothesis with either α = .05 or α = .01.

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