Aclass has $90 to spend on a field trip. the field trip costs $2.50 per person and there will be 5 chaperones on the trip. one
student used the inequality 90 > 2.50(x+5) to find x, the number of students that the field trip budget could accommodate.
which best describes the error in the student's inequality?
the expression representing the cost should be 2.50(5x).
the expression representing the cost should be 2.50(x+5x).
the inequality symbol should be instead of > since up to and including 590 may be spent.
the inequality symbol should be s instead of > since less than or equal to $90 may be spent.

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