DeVry MAT 533 Week 2,3, 4, 5, 6 and 7 Discussions (2014)

Week 2Case: Let’s Make a Deal (graded)A number of years ago, there was a popular television game show called Let’s Make a Deal. The host, Monty Hall, would randomly select contestants from the audience and, as the title suggests, he would make deals for prizes. Contestants would be given relatively modest prizes and then would be offered the opportunity to risk that prize to win better ones.Suppose you are a contestant on this show. Monty has just given you a free trip worth $500 to a locale that is of little interest to you. He now offers you a trade: Give up the trip in exchange for a gamble. On the stage are three curtains, A, B, and C. Behind one of them is a brand-new car worth $45,000. Behind the other two curtains, the stage is empty.You decide to gamble and give up the trip. (The trip is no longer an option for you.) You must now select one of the curtains. Suppose you select Curtain A.In an attempt to make things more interesting, Monty then exposes an empty stage by opening Curtain C (he knows that there is nothing behind Curtain C). He then asks you if you want to keep Curtain A, or switch to Curtain B.What would you do?Hint: Questions to consider are: What is the probability of winning and the probability of losing the car prior to opening Curtain C? What is the probability of winning and the probability of losing the car after Curtain C is opened? What is your best strategy?___________________________________________________________.8181819915771px;”=””>Week 3Ethics in Statistics: Discussion (graded)1. Why is it important to study ethics in statistics? Have you seen statistics misused? Without naming specific companies or people, can you provide examples?2. Please find (on the Internet or from the Keller library) and post an article regarding ethics and statistics. Please attach the article, or provide its link in your post, together with a brief summary of the article in your own words. Be sure to use quotation marks around any words taken directly from the article (not to do so constitutes “plagiarism”). Then, in a separate post, review one or more articles posted by other students and provide the other student or students with your reflections (don’t just agree or disagree)._____________________________________________________________Week 4: Hypothesis Testing I: Basics and Confidence Intervals – DiscussionCase: Statistics in Action: Medicare Fraud Investigations (graded)Read the selection in your textbook pertaining to the Case: Statistics in Action: Medicare Fraud Investigations; load the data set for the case, MCFRAUD, into Minitab; answer the question about the case in the Discussion area; and likewise read and respond to the follow-on selections in the textbook for the case in the Statistics in Action Revisited.What is a point estimate of the mean overpayment?_________________________________________________________________.8181819915771px;”=””>Week 5: Hypothesis Testing II: One Sample Hypothesis Tests – DiscussionCase: Statistics in Action: Diary of a Kleenex User (graded)Read the selection in your text book pertaining to the Case: Statistics in Action: Diary of a Kleenex®User; load the data set for the case, TISSUES, into Minitab; answer the question about the case in the Discussion area; and likewise read and respond to the follow-on selections in the textbook for the case in the Statistics in Action Revisited.How would you briefly summarize the case, and the data that was generated?__________________________________________________________________.8181819915771px;”=””>Week 6: Simple Linear Regression – DiscussionCase: Statistics in Action: Legal Advertising—Does It Pay? (graded)Read the Case: Statistics In Action: Legal Advertising—Does It Pay?, and answer the following questions. (The case is included in your textbook, Chapter 10.) The data set for the case study is LEGALADV, and it is available in your textbook resources, so you don’t have to enter the data!Summarize what the case is about, and what the variables represent._______________________________________________________________Week 7: Multiple Linear Regression – DiscussionCase: Statistics in Action: Bid-Rigging in the Highway Construction Industry (graded)Read the Case: Statistics in Action: Bid-Rigging in the Highway Construction Industry, in Chapter 11 of your textbook, and answer the following questions. The data set, FLAG, for the case study is available in the publisher’s website, so you don’t need to enter the data into Minitab by hand.What is this case about? Describe the key variables.