Question 60 (9 points) A survey of a random sample of 400 Telfer undergraduate students in third or fourth year was carried out to gather information for research about student life. Questions were asked about demographic characteristics, grades, study habits, and leisure activities. Here are some of the variables for which data were collected (they are labeled V1 through V9, for convenience). Assume that quantitative variables are normally distributed. . V1: Firstyear overall grade (percent) . V2: Gender (1=male, 2=female) . V3: Opinion of Telfer support services (1=poor, 2=fair, 3 =good, 4=excellent) . V4: Second-year overall grade (percent) . V5: Any paid part~time work? (1=yes, 2=no) . V6: Mode of travel to school (1=car, 2=transit, 3=bicycle, 4=walkflive on campus) . V7: Total study time per week (hours) . V8: Monthly amount spent on recreational activities (dollars) . V9: Are you a regular Facebook user? (1=yes, 2=no) For each of the following research questions, suggest which of the techniques we have studied in class could be used to address the question. A list of techniques to choose from is enumerated below. Select the number of the most appropriate technique from the drop-down list on the left of each research question. Are there equal percentages of males and females (V2) who do paid part-time work (V5)? Two answers are possible here - only one is needed. Please indicate the appropriate technique covered earlier in the term. Are first-year overall grades (V1) and second-year overall grades (V4) different 1. One-sample z-test of a proportion on average? 2. Two-sample z-test of two Can second-year overall proportions grade (V4) be explained by study hours (V7) and 3. One-sample t-test of a mean amount spent on recreational activities (V8)? 4. Two-sample t-test of two independent means Is gender (V2) related to opinion about Telfer support services (V3)? 5. Matched pairs t-test of two dependent means Does monthly expenditure on recreational activities 6. Chi-square test of independence (V8) exceed $250? 7. Simple linear regression Is the rate of Facebook users (V9) different from 8. Multiple regression the overall percentage in Canada? 9. One-way analysis of variance Is mode of travel (V6) related to study hours (V7)? Is the average study time (V7) the same for males and females (V2)? v Is second-year overall grade (V4) related to study hours (V7)