In terms of meeting assumptions of the t test for dependent means, the most common cause of serious problems is when a one-tailed test is used and the population distribution is highly __________

In the United States, the natural sex ratio among newborns is approximately

50 males to 50 females. 52 males to 48 females. 54 males to 46 females. 48 males to 52 females.

A sampling distribution is the probability distribution of a statistic.

a. true b. false