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a). A researcher conducts a hypothesis test to evaluate the effect of a treatment. The hypothesis test produces a z-score of z = 2.37. Assuming that the researcher is using a two-tailed test with a = .05, what decision should be made and why? b) If a researcher is using a t statistic to test a null hypothesis about a population, what information is needed from the population to calculate the t statistic

a). A researcher conducts a hypothesis test to evaluate the effect of a treatment. The hypothesis test produces a z-score of z = 2.37. Assuming that the researcher is using a two-tailed test with a = .05, what decision should be made and why? b) If a researcher is using a t statistic to test a null hypothesis about a population, what information is needed from the population to calculate the t statistic

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 31E
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1. a). A researcher conducts a hypothesis test to evaluate the effect of a treatment. The hypothesis test produces a z-score of z = 2.37. Assuming that the researcher is using a two-tailed test with a = .05, what decision should be made and why? b) If a researcher is using a t statistic to test a null hypothesis about a population, what information is needed from the population to calculate the t statistic
Transcribed Image Text:1. a). A researcher conducts a hypothesis test to evaluate the effect of a treatment. The hypothesis test produces a z-score of z = 2.37. Assuming that the researcher is using a two-tailed test with a = .05, what decision should be made and why? b) If a researcher is using a t statistic to test a null hypothesis about a population, what information is needed from the population to calculate the t statistic
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