Foundations of Statistics Trial Exam 2 Percentage of overall assessment covered by this paper: 40 % The following information will be shown on the front of the Final Exam paper: Exam Code(s): STA10003 Title of Paper: Foundations of Statistics Exam Duration: 150 minutes Reading Time: 10 minutes During an exam, you must not have in your possession, a book, notes, paper, electronic device(s), calculator, pencil case, mobile phone, smart watch/device or other material/item which has not been authorised for the exam or specifically permitted as noted below. Any material or item on your desk, chair or person will be deemed to be in your possession. You are reminded that possession of unauthorised materials in an exam is a discipline offence. No examination papers are to be removed from the room. Authorised Materials Calculators Yes No Open Book Yes No Specifically Permitted Items Yes No If yes, specifically permitted items are: Writing materials / Ruler One double-sided A4 sheet of notes - printed or handwritten, but with no extra papers pasted on A4 sheet of notes must be handed up with exam paper Answering Instructions: Write all answers in the spaces provided For Multiple Choice questions you are required to circle your answer. If you change an answer, cross out the incorrect answer [ Ø ], and ensure that your selected answer is clearly indicated. Note: The marks shown on this Trial Exam are indications of marks allocated - so they should be used as a guide only. The marks allocated for each question will depend upon the format [eg multiple choice, short answer etc] and the complexity of the question. STA10003 - Foundations of Statistics Trial Exam 2 --
Question 1 [14 marks] The following are the hypothesis tests you have studied in Foundations of Statistics: Binomial test One sample t-test Independent Samples t-test Paired samples t-test Cross-tabulation / Chi-square test Pearson's r / Regression test For each scenario below [and given that any associated assumptions have been met], choose the most appropriate test to use for the following research problems: 1.1 According to a web advertising company, the impact of pop up ads depends on age. A random sample of 60 web surfers are asked if they remember a specific internet ad. The age of each respondent is recorded as 'teenager', 'young adult' or 'over 30'. What analysis would you use to test the hypothesis that teenagers are more likely to remember the pop up ad than young adults or people over 30? [2 marks] A. Binomial test B. One-sample t-test C. Independent Samples t-test D. Paired Samples t-test E. Cross-tabulation / Chi-square test F. Pearson's r / Regression 1.2 Jane, who works for Universal Bank, wants to know which credit card to recommend to her customers. She believes that VIZER credit card customers probably get more bonus points than customers of AustralianExpress credit cards. She records the number of bonus points awarded to a random sample of customers of each card. What analysis would you use to test