Write an algorithm in pseudocode which prints all strings of length 6 where the first and fourth characters are any symbol from x={! ,@,#,$,%,^}, the 2nd and 6th character is any digit in {0,1,2}, and the 3rd and 5th character is any digit 1,2,…9. how many times will the print command be called (e. g. how many 6-character strings will be printed)?

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