Setting your alpha at .05 means there is a 5% chance you will reject the null hypothesis even though it is actually true. Suppose we are conducting a study where making this type of error could lead to severe consequences. If we wanted to be more conservative and set our alpha at .01 (1% chance) for a one-tailed test then what should our new cutoff score be

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