You work in a machine design department and need to specify the diameter of a pin that slides back and forth through a hole. the hole diameter is specified as 0.500 inch with a tolerance of 0.010 inch. the maximum pin diameter must be 0.002 inch smaller than the minimum hole diameter. if the pin diameter has a tolerance of 0.010 inch, what diameter, in inch, should you specify for the pin

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