Novy-PSY-87540_3.doc - STATISTICS 1 Jennifer Novy California Southern University Dr Bednarchik STATISTICS 2 Exercise II#1 Define"power in relation to

Novy-PSY-87540_3.doc - STATISTICS 1 Jennifer Novy...

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STATISTICS 1 Jennifer Novy California Southern University November 18, 2019 Dr. Bednarchik
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STATISTICS 2 Exercise II #1. Define "power" in relation to hypothesis testing. The probability of rejecting a false null hypothesis when it is false, Power is the probability that a test of significance will recognize a present effect. #2. Alpha (a) is used to measure the error for decisions concerning true null hypotheses. What is beta (ß) error used to measure? Beta (ß) or type II error is a measure of error for decisions relating to false null hypotheses. #3. In the following studies, state whether you would use a one-sample t test or a two- independent-sample t test. a. A study testing whether night-shift workers sleep the recommended 8 hours per day = one-sample t test b. A study measuring differences in attitudes about morality among Democrats and Republicans = two-independent-sample t test c. An experiment measuring differences in brain activity among rats placed on either a continuous or an intermittent reward schedule
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