a company's p/e ratio is the price of a share of its stock divided by its earnings per share. suppose you know a company's p/e ratio and its share price. how could you calculate its earnings per share?

a. divide its share price by its p/e ratio.
b. take the reciprocal of its share price.
c. take the reciprocal of its p/e ratio.
d. divide its p/e ratio by its share price.

Two researchers are attempting to create a new psychotherapy protocol that more reduces panic attacks. they believe that they have succeeded and are now in the clinical trial period of their protocol's development. they are working with several cohort groups, some of which have been through the new protocol, while others have done the standard protocol currently recommended. if these researchers are interested in evaluating the difference in the percentage of test subjects who successfully decreased their panic attacks in 2 months on the new protocol versus the percentage of test subjects who successfully decreased their panic attacks in 2 months with the traditional protocol, which of the following statistical tests would be most appropriate? a. analysis of variance (anova) b. correlation c. chi-square test d. paired t-test e. independent t-test