Maria tested an antidepressant therapy treatment.  She did a t-test and got the following APA sentence:  t(165) = 4.56, p < .01, r2 = 0.05.  Looking at these results—especially the bolded/underlined parts—what can you conclude? she used a large sample size, the therapy has a significant effect, but the effect is small she used a small sample size, the therapy has no effect she used a small sample size, the therapy has a significant effect, and the effect is large she used a large sample size, the therapy has no effect

You are conducting a study to see if the proportion of voters who prefer Candidate A is significantly more than 0.57. You use a significance level of a = 0.001. Ho:p = 0.57 H1:p > 0.57 You obtain a sample of size n = 331 in which there are 211 successes.

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Imagine you are doing a Related-Samples t-test, and you are on Step Four of the hypothesis test.  The study you are doing is testing whether there’s a significant difference between the anxiety of people before and after a final exam.  The APA sentence is t(28) = 3.45, p < .05, d = 1.05.  What is the correct set of conclusions that goes with this APA sentence?   Group of answer choices   Reject the H0, conclude that there IS a difference in anxiety, conclude based on effect size that the difference is small. Fail to Reject the H0, conclude that there IS a difference in anxiety. Reject the H0, conclude that there IS NOT a difference in anxiety, conclude based on effect size that the difference is small. Fail to Reject the H0, conclude that there IS NOT a difference in anxiety. Reject the H0, conclude that there IS a difference in anxiety, conclude based on effect size that the difference is large.

Pick the Test (Z-test, Single Sample T-test, Independent Sample T-test, Paired Sample Ttest, ANOVA):   8. It’s believed that the average amount of sleep a person in the United States gets per night is 6.3 hours. A mom believes that mothers get far less sleep than that. She contacts a random sample of 20 other moms on a mom social networking site and finds that they get an average of 5.2 hours of sleep per night, with a standard deviation of 1.8 hours. Test: ___________

Bruce was reading an article.  In the Methods section it said that a within subjects ANOVA was carried out.  In the Results section, he saw that an SPSS phrase, F (8, 192) = 23.00, p < 0.05.  How many levels of the factor did the study have?\

You are conducting a study to see if the proportion of men over 50 who regularly have their prostate examined is significantly more than 0.52. You use a significance level of a = 0.05. Ho:p = 0.52 H1:p> 0.52 You obtain a sample of size n = 556 in which there are 308 successes. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is... less than (or equal to) a greater than a This test statistic leads to a decision to... reject the null accept the null fail to reject the null As such, the final conclusion is that. There is sufficient evidence to warrant rejection of the claim that the proportion of men over 50 who regularly have their prostate examined is more than 0.52. There is not sufficient evidence to warrant rejection of the claim that the proportion of men over 50 who regularly have their prostate examined is more…

You are conducting a study to see if the proportion of women over 40 who regularly have mammograms is significantly more than 0.79. You use a significance level of a 0.01. Ho:p = 0.79 H1:p > 0.79 You obtain a sample of size n 253 in which there are 213 successes. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is... O less than (or equal to) a O greater than a This test statistic leads to a decision to... O reject the null O accept the null O fail to reject the null

Would you favor spending more federal tax money on the arts? Of a random sample of n1 = 215 women, r1 = 63 responded yes. Another random sample of n2 = 185 men showed that r2 = 49 responded yes. Does this information indicate a difference (either way) between the population proportion of women and the population proportion of men who favor spending more federal tax dollars on the arts? Use ? = 0.05.