Psy230 - Study guides, Class notes & Summaries

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Mathematically, the power of an experiment is - the probability that the results of an experiment will allow rejection of the null hypothesis if the independent variable has a real effect. As the power of an experiment increases, the probability of making a Type II error ___________________. - decreases The hypothesis that claims the difference in results between conditions is due to the independent variable is the - alternative hypothesis This error is defined as a decision to retain the ...

You conduct a z test using an alpha level of .05two-tail (zcrit = ± 1.96). The value of zobt = -1.5. Do you reject or retain the null hypothesis? - Retain the null hypothesis Mathematically, the power of an experiment is - the probability that the results of an experiment will allow rejection of the null hypothesis if the independent variable has a real effect. You conduct a sign test and find that the calculated probability is .067. You are using an alpha level of .05two-tailed. Given thi...

PSY230 stats (exam 3 conceptual) NAU Dr. Weber Practice Questions and Answers (100% Pass) A Type I error is defined as - Answer️️ -a decision to reject the null hypothesis when the null hypothesis is true. You conduct a sign test and find that the calculated probability is .067. You are using an alpha level of .05two-tailed. Given this scenario, is the following statement true or false? Based on the decision rule, you should reject the null hypothesis and conclude that the independe...

PSY230 stats (exam 3 conceptual) NAU Dr. Weber Study Guide Solutions A Type I error is defined as - ANSWER-a decision to reject the null hypothesis when the null hypothesis is true. You conduct a sign test and find that the calculated probability is .067. You are using an alpha level of .05two-tailed. Given this scenario, is the following statement true or false? Based on the decision rule, you should reject the null hypothesis and conclude that the independent variable has an effect on t...

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