Car A is traveling east at a steady speed of 45 miles per hour. After 2 hours, it is 100 miles east of Johnstown.
Car B is traveling east on the same road. Its distance east of Johnstown is
represented by the graph.
Miles east of Johnstown
200
180
160
140
120
100
80
80
40
20
12
8 9 10
Time (hours)
Where were the two cars in relation to each other when they began traveling?
A. Car B was 40 miles east of car A
B. Car A was 45 miles east of car B.
O O O
C. Car A was 10 miles east of car B
D. Car B was 10 miles east of car A

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