I need help on this study guide.Document Preview:Statistics 220 study guide for test Name: 1. For each of the situations below choose a method of analysis from the list here. State the null hypothesis next to each choice. Be specific where possible. 1-sample z for mean 1-sample t for mean 2-sample t for means 1-sample proportion 2-sample proportions Chi-square ANOVA Regression 1.1. A researcher wants to see if there is a relationship between the amount the arm strength of professional bowlers (measured in kg on one-arm curls) and their bowling average score (which ranges from 180 to 260). 1.2. Two students disagree about students have more expensive cars, Macalester or Saint Thomas. They go to their parking lots at their colleges and, using a blue book, find the prices for all of the cars they see. 1.3. A high school counselor looks up the company-provided average and standard deviation for PSAT scores. He wants to show that his students are above average. 1.4. National Park gift shops each record per-shopper spending amounts. Six different shops use one weeks sales totals as samples for comparing all six parks. 1.5. At a large university the health services department conducts survey at three of its dorms to see which of four drugs are used by the students. The question is whether living in proximity to users of a certain drug influences a students choice of drug to experiment with. 1.6. Bouncers at two bars each think they have drunker patrons. After talking on the phone, they each agree to look at the next twenty patrons at their bars and see how many are drunk when they leave.The QMCS department wants a grade distribution of 20% A, 25% B, 35% C and 20% below in each class. If a certain prof gave 9 As, 22 Bs, 10 Cs and 1 F in his class, is he going to get in trouble? Show all the work for a goodness-of-fit test with a cutoff of 7.5. Look at the table below for an ANOVA (from Excel). Anova: Single Attachments: Exam-3-Practi.doc