High levels of plasma ________ will accelerate the onset of puberty in human females

Your textbook discusses a typical theory about brain lateralization. According to this discussion, gender differences in cognitive performance can be traced to the observation that

a. males process most information using the left hemisphere, whereas females primarily use the right hemisphere. b. males' brains show more lateralization than females' brains, so that a larger portion of the right hemisphere can process spatial information. c. males' brains show more lateralization than females' brains, leading to a decreased ability in combining different cognitive skills. d. verbal tasks use the right hemisphere in males, but the left hemisphere in females.

A sample of n = 25 scores produces a t statistic of t = 2.062 . If the researcher is using a two-tailed test, which of the following is the correct statistical decision?

a. The researcher can reject the null hypothesis with ? = .05 but not with ? = .01. b. The researcher can reject the null hypothesis with either ? = .05 or ? = .01. c. The researcher must fail to reject the null hypothesis with either ? = .05 or ? = .01. d. It is impossible to make a decision about H0 without more information.