Essentials Of Statistics For Business & Economics
9th Edition
ISBN: 9780357045435
Author: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran
Publisher: South-Western College Pub
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Textbook Question
Chapter 12, Problem 3CP
Fresno Board Games manufactures and sells several different board games online and through department stores nationwide. Fresno’s most popular game, ¡Cabestrillo Cinco!, is played with 5 six-sided dice. Fresno has purchased dice for this game from Box Cars, Ltd., for twenty-five years, but the company is now considering a move to Big Boss Gaming, Inc. (BBG), a new supplier that has offered to sell dice to Fresno at a substantially lower price. Fresno management is intrigued by the potential savings offered by BBG, but is also concerned about the quality of the dice produced by the new supplier. Fresno has a reputation for high integrity, and its management feels that it is imperative that the dice included with ¡Cabestrillo Cinco! are fair.
To alleviate concerns about the quality of the dice it produces, BBG allows Fresno’s manager of product quality to randomly sample five dice from its most recent production run. While being observed by several members of the BBG management team, Fresno’s manager of product quality rolls each of these five randomly selected dice 500 times and records each outcome. The results for each of these five randomly selected dice are available in the file BBG.
Fresno management now wants to use these data to assess whether any of these five six-sided dice is not fair; that is, does one outcome occur more frequently or less frequently than the other outcomes?
Managerial Report
Prepare a managerial report that addresses the following issues.
- 1. Use
descriptive statistics to summarize the data collected by Fresno’s manager of product quality for each of the five randomly selected dice. Based on these descriptive statistics, what are your preliminary conclusions about the fairness of the five selected dice? - 2. Use the data collected by Fresno’s manager of product quality to test the hypothesis that the first of the five randomly selected dice is fair, i.e., the distribution of outcomes for the first of the five randomly selected dice is multinomial with p1 = p2 = p3 = p4 = p5 = p6 = 1/6. Repeat this process for each of the other four randomly selected dice. Use α = .01. Do the results of your hypothesis tests provide evidence that BBG is producing unfair dice?
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Kentville, a community of 10,000 people, resides next to a krypton mine, and there is a concern that the emission from the krypton smelter have resulted in adverse effects. Specifically, Kryptonosis seems to have killed 12 of Kentville’s inhabitants last year. A neighboring community, Lanesburg, has 25,000 inhabitants and is far enough from the smelter to not be affected by the emission. In Lanesburg, only three people last year died of Kryptonosis. Given that the number of deaths in Kentville and their causes last year were: Heart attack=7 Accidents=4 Kryptonosis=12 Other=6
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Chapter 12 Solutions
Essentials Of Statistics For Business & Economics
Ch. 12.1 - Use the sample data below to test the...Ch. 12.1 - reconsider the observed frequencies in exercise 1...Ch. 12.1 - Late Flight Comparison Across Airlines. The sample...Ch. 12.1 - Electronic Component Supplier Quality Comparison....Ch. 12.1 - Research Classification of Higher Education. The...Ch. 12.1 - Error Rates in Tax Preparation. A tax preparation...Ch. 12.1 - Use of Social Media. Social media is becoming more...Ch. 12.1 - Supplier Quality: Three Inspection Outcomes. The...Ch. 12.2 - The following table contains observed frequencies...Ch. 12.2 - The following table contains observed frequencies...
Ch. 12.2 - Airline Ticket Purchases for Domestic and...Ch. 12.2 - Hiring and Firing Plans at Private and Public...Ch. 12.2 - Generational Differences in Workplace Attitudes....Ch. 12.2 - Vehicle Quality Ratings. A J. D. Power and...Ch. 12.2 - Company Reputation and Management Quality Survey....Ch. 12.2 - Academy Awards and Movie Fan Sentiment. The race...Ch. 12.2 - Amount of Sleep by Age Group. The National Sleep...Ch. 12.2 - Prob. 18ECh. 12.3 - Test the following hypotheses by using the 2...Ch. 12.3 - The following data are believed to have come from...Ch. 12.3 - Television Audiences Across Networks. During the...Ch. 12.3 - M&M Candy Colors. Mars, Inc. manufactures M&M’s,...Ch. 12.3 - Shareholder Scoreboard Ratings. The Wall Street...Ch. 12.3 - Traffic Accidents by Day of Week. The National...Ch. 12.3 - Daily High Temperatures. Bob Feller, an Iowa...Ch. 12.3 - Weekly Demand at Whole Foods Market. The manager...Ch. 12 - Where Millionaires Live in America. In a 2018...Ch. 12 - Quality Comparison Across Production Shifts....Ch. 12 - Ratings of Most-Visited Art Museums. As listed by...Ch. 12 - Pace-of-Life Preference By Gender. A Pew Research...Ch. 12 - Church Attendance by Age Group. The Barna Group...Ch. 12 - Ambulance Calls by Day of Week. An ambulance...Ch. 12 - Attitudes Toward New Nuclear Power Plants. A...Ch. 12 - America’s Favorite Sports. The Harris Poll tracks...Ch. 12 - Best-Selling Small Cars in America. Based on 2017...Ch. 12 - Prob. 36SECh. 12 - Testing If Daily Sales Obey a Binomial Probability...Ch. 12 - In a study conducted by Zogby International for...Ch. 12 - Six months ago, Fuentes Salty Snacks, Inc., added...Ch. 12 - Fresno Board Games manufactures and sells several...
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