Power_exercises - March 8, 2010 1) Read each of the...

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March 8, 2010 1) Read each of the following statements and indicate if it is true (T) or false (F). a------A type II error occurs when you fail to reject a false null hypothesis. b------If the null hypothesis s in fact true, alpha is the probability that we will incorrectly reject it. c------alpha is the probability that the null hypothesis is wrong. d------A type I error occurs when you reject the null hypothesis when in fact it is true e------A type II error occurs when you accept the null hypothesis when the alternative hypothesis is true. f------As sample size increases, the standard error of the mean increases. g------Beta refers to the probability that we fail to reject the null hypothesis when in fact the null hypothesis is true. h-----power=1-alpha i----As significance level is reduced from .05 to .01, power decreases. j--- You want to maximize the power of your statistical test. This means that you wish to avoid making a type I error. k----You wish to avoid making a type II error. Therefore alpha should be .01
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This note was uploaded on 04/29/2010 for the course PSYCH 315 taught by Professor Afroditipanagopoulos during the Winter '10 term at Concordia Canada.

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Power_exercises - March 8, 2010 1) Read each of the...

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