The null hypothesis which is appropriate for a directional alternative hypothesis asserts that ____. the independent variable has had some effect the independent variable has had no effect the independent variable does not have an effect in the direction predicted by H 1 chance alone is responsible for the differences between conditions If alpha equals 0.05 and the probability level of your experiment is 0.04, you would ____. reject the null hypothesis redo the experiment retain the null hypothesis accept the null hypothesis Using the sign test, if the null hypothesis is false, then P (the probability of a plus) ____. equals alpha is not equal to 0.50 equals beta equals 0.50 If alpha is 0.05 and obtained probability level is 0.01, you could be making a ____. Type II error or correct decision Type II error or a Type I error Type I error or a correct decision Type III error The alpha level ____. is always set at 0.05 or 0.01 depends on N is determined by the consequences of making a Type I and Type II error is set after the data are analyzed Using the sign test, if (1) H1 is directional, (2) H0 is false, (3) = 0.01, and (4) N = 12, then the probability of making a Type I error equals ____. 0.0002 0.0010 0.0192 0 If you reject H0 when H0 is false, you have made a ____ Type III error Type I error Type II error correct decision If the alpha level is changed from 0.05 to 0.01, what effect does this have on beta? beta is unaffected beta decreases cannot be determined beta increases In a nondirectional alternative hypothesis, evaluating the probability of observing 7 pluses out of 8 events equals ____. p(7) + p(8) p(0) + p(8) p(0) + p(1) + p(7) + p(8) p(7) Exhibit 102 Refer to the following hypothetical data collected using replicated measures design: Subject Pre Post 1 50 56 2 49 50 3 37 30 4 16 25 5 80 90 6 42 44 7 40 60 8 58 71 9 31 32 10 21 22 Refer to Exhibit 102. In a twotailed test of H0 using = 0.05, what is p(obtained) for the results shown? 0.1094 0.0108 0.0500 0.0216 In an experiment in which H1 is nondirectional, and the state of reality is such that the probability of a plus = 0.50, the probability of making a Type II error is ____. 0 1 alpha 1 need more information Maximizing the power of an experiment ____. minimizes beta minimizes alpha increases the probability of rejecting H when H is true 0 0 increases the probability of making a Type II error If H1 is nondirectional and the size of the effect of the independent variable decreases, the probability of making a Type I error ____. decreases increases need more information equals zero If the null hypothesis is false, the probability of making a correct decision is given by ____. 1 alpha alpha beta power You can only compute power when ____. Beta > 0.05 H is given 1 1 power = 0.05 alpha > 0.05 The null hypothesis which is appropriate for a directional alternative hypothesis asserts that ____. the independent variable has had some effect the independent variable has had no effect the independent variable does not have an effect in the direction predicted by H 1 chance alone is responsible for the differences between conditions If alpha equals 0.05 and the probability level of your experiment is 0.04, you would ____. reject the null hypothesis redo the experiment retain the null hypothesis accept the null hypothesis Using the sign test, if the null hypothesis is false, then P (the probability of a plus) ____. equals alpha is not equal to 0.50 equals beta equals 0.50 If alpha is 0.05 and obtained probability level is 0.01, you could be making a ____. Type II error or correct decision Type II error or a Type I error Type I error or a correct decision Type III error The alpha level ____. is always set at 0.05 or 0.01 depends on N is determined by the consequences of making a Type I and Type II error is set after the data are analyzed Using the sign test, if (1) H1 is directional, (2) H0 is false, (3) = 0.01, and (4) N = 12, then the probability of making a Type I error equals ____. 0.0002 0.0010 0.0192 0 If you reject H0 when H0 is false, you have made a ____ Type III error Type I error Type II error correct decision If the alpha level is changed from 0.05 to 0.01, what effect does this have on beta? beta is unaffected beta decreases cannot be determined beta increases In a nondirectional alternative hypothesis, evaluating the probability of observing 7 pluses out of 8 events equals ____. p(7) + p(8) p(0) + p(8) p(0) + p(1) + p(7) + p(8) p(7) Exhibit 102 Refer to the following hypothetical data collected using replicated measures design: Subject Pre Post 1 50 56 2 49 50 3 37 30 4 16 25 5 80 90 6 42 44 7 40 60 8 58 71 9 31 32 10 21 22 Refer to Exhibit 102. In a twotailed test of H0 using = 0.05, what is p(obtained) for the results shown? 0.1094 0.0108 0.0500 0.0216 In an experiment in which H1 is nondirectional, and the state of reality is such that the probability of a plus = 0.50, the probability of making a Type II error is ____. 0 1 alph a 1 need more information Maximizing the power of an experiment ____. minimizes beta minimizes alpha increases the probability of rejecting H when H is true 0 0 increases the probability of making a Type II error If H1 is nondirectional and the size of the effect of the independent variable decreases, the probability of making a Type I error ____. decrease s increases need more information equals zero If the null hypothesis is false, the probability of making a correct decision is given by ____. 1 alpha alpha beta power You can only compute power when ____. Beta > 0.05 H is given 1 1 power = 0.05 alpha > 0.05 The null hypothesis which is appropriate for a directional alternative hypothesis asserts that ____. the independent variable has had some effect the independent variable has had no effect the independent variable does not have an effect in the direction predicted by H 1 chance alone is responsible for the differences between conditions If alpha equals 0.05 and the probability level of your experiment is 0.04, you would ____. reject the null hypothesis redo the experiment retain the null hypothesis accept the null hypothesis Using the sign test, if the null hypothesis is false, then P (the probability of a plus) ____. equals alpha is not equal to 0.50 equals beta equals 0.50 If alpha is 0.05 and obtained probability level is 0.01, you could be making a ____. Type II error or correct decision Type II error or a Type I error Type I error or a correct decision Type III error The alpha level ____. is always set at 0.05 or 0.01 depends on N is determined by the consequences of making a Type I and Type II error is set after the data are analyzed Using the sign test, if (1) H1 is directional, (2) H0 is false, (3) = 0.01, and (4) N = 12, then the probability of making a Type I error equals ____. 0.0002 0.0010 0.0192 0 If you reject H0 when H0 is false, you have made a ____ Type III error Type I error Type II error correct decision If the alpha level is changed from 0.05 to 0.01, what effect does this have on beta? beta is unaffected beta decreases cannot be determined beta increases In a nondirectional alternative hypothesis, evaluating the probability of observing 7 pluses out of 8 events equals ____. p(7) + p(8) p(0) + p(8) p(0) + p(1) + p(7) + p(8) p(7) Exhibit 102 Refer to the following hypothetical data collected using replicated measures design: Subject Pre Post 1 50 56 2 49 50 3 37 30 4 16 25 5 80 90 6 42 44 7 40 60 8 58 71 9 31 32 10 21 22 Refer to Exhibit 102. In a twotailed test of H0 using = 0.05, what is p(obtained) for the results shown? 0.1094 0.0108 0.0500 0.0216 In an experiment in which H1 is nondirectional, and the state of reality is such that the probability of a plus = 0.50, the probability of making a Type II error is ____. 0 1 alph a 1 need more information Maximizing the power of an experiment ____. minimizes beta minimizes alpha increases the probability of rejecting H when H is true 0 0 increases the probability of making a Type II error If H1 is nondirectional and the size of the effect of the independent variable decreases, the probability of making a Type I error ____. decrease s increases need more information equals zero If the null hypothesis is false, the probability of making a correct decision is given by ____. 1 alpha alpha beta power You can only compute power when ____. Beta > 0.05 H is given 1 1 power = 0.05 alpha > 0.05