A random sample of n = 16 scores is obtained from a population with ? = 12 . If the sample mean is 6 points greater than the population mean, what is the z-score for the sample mean?
a. +6.00
b. +2.00
c. +1.00
d. Cannot be determined without knowing the population mean
B
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Married people who engage in extramarital sex are ____ to end up getting a divorce than married people who donot
a. actually less likely b. no more likely c. slightly, but not significantly, more likely d. about twice as likely
James has one brown-eye gene and one blue-eye gene. His wife Carolyn also has one brown-eye gene and one blue-eye gene. What is the chance that their child could have blue eyes?
a. one chance in two b. one chance in three c. one chance in four d. no chance (zero out of four)
Multiple personality, or dissociative identity disorder, often begins
a. as a result of combat exhaustion. b. in adulthood as a response to unremitting phobias. c. as a consequence of obsessive-compulsive disorder. d. in childhood as a result of unbearable experiences.
When discussing the reliability of memories, which of the following is considered to be the most vulnerable to suggestion, and therefore, perhaps the least reliable?
a) the memory of a senior citizen b) the memory of an adult c) the memory of a school-age child d) the memory of a preschool-age child