You are more likely to help a stranger when many people are around than when you are by yourself
a. True
b. False
Indicate whether the statement is true or false
False
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A researcher expects a treatment to increase the scores for individuals in a population. The treatment is evaluated using a one-tailed hypothesis test, and the test produces z = +2.40 . Based on this result, what is the correct statistical decision?
a. The researcher should reject the null hypothesis with ? = .05 but not with ? = .01. b. The researcher should reject the null hypothesis with either ? = .05 or ? = .01. c. The researcher should fail to reject H0 with either ? = .05 or ? = .01. d. Cannot answer without additional information
A repeated-measures research study uses a total of 20 participants to compare two treatment conditions. If the results are used to construct a 90% confidence interval for the population mean difference, then the t values will be ±1.729
Indicate whether the statement is true or false
Based on statistics, which United States resident would you expect to have the shortest lifespan?
a. Tyler, an African-American male b. Tonya, an African-American female c. Taylor, an European-American male d. Teri, an European-American female
Your phone rings, and a voice on the line asks if you will answer a short survey about your Internet service. When you agree and spend the next ten minutes answering questions regarding your Internet service, you have just exhibited
a. obedience. b. compliance. c. conformity. d. pseudostupidity.