What z-score value separates the top 70% of a normal distribution from the bottom 30%?
A) ?z = 0.52
B) ?z = 0.84
C) ?z = -0.52
D) ?z = -0.84
C
You might also like to view...
Which of the following answers to the "Heinz dilemma" best reflects postconventional moral reasoning?
a. Heinz should steal the drug because he needs his wife and she might die without it. b. Heinz should steal the drug to avoid being blamed if his wife dies. c. People would lose respect for Heinz if he didn't at least try to save his wife by stealing the drug. d. Heinz must steal the drug because he has a duty to protect his wife. e. Heinz would be morally wrong not to steal the drug because it would violate his belief in the absolute value of human life.
K-complexes occur
A. during episodes of myoclonia. B. throughout all sleep stages but primarily during REM. C. in response to awakening. D. spontaneously and in response to unexpected stimuli.
For the Pearson r, the greater the number of degrees of freedom, the
greater the likelihood of a. obtaining significance b. rejecting Ho c. the sample correlation also existing in the population d. all of these
Results of studies such as the one concerning the legal drinking age demonstrate that:
a. there is no way of predicting behaviour from attitudes b. behaviour is influenced by much more than one specific attitude c. attitudes toward legal issues can't relate to people's behaviour in any significant way d. attitudes are consistent with behaviour only on private issues e. attitude–behaviour consistency is determined by age