A company that provides tutoring is evaluating whether or not it’s tutoring services are effective at boosting students’ class rank. A group of 50 students is participating in this study. Each student’s class rank was measured three times, once before beginning the tutoring service, a second time after 1 semester in the tutoring service, and a third time after 2 semesters in the tutoring service. What is the correct statistical test to determine if the tutoring services are effective at boosting students’ class rank?

In 2000, for a certain region, 27.1% of incoming college freshman characterized their political views as liberal, 23.1% as moderate, and 49.8% as conservative. for this year, a random sample of 400 incoming college freshman yielded the frequency distribution for political views shown below. a. determine the mode of the data. b. decide whether it would be appropriate to use either the mean or the median as a measure of center. explain your answer. political view frequency liberal 118 moderate 98 conservative 184 a. choose the correct answer below. select all that apply. a. the mode is moderate. b. the mode is liberal. c. the mode is conservative. d. there is no mode.