Bartleby Sitemap - Textbook Solutions
All Textbook Solutions for Essentials of Modern Business Statistics with Microsoft Office Excel (Book Only)
39SE40SE41SE42SE43SE44SE45SE46SE47SE1CP1E2E3E4E5E6E7E8E9E10E11E12E13E14E15E16E17E18E19E20E21E22E23E24E25E26E27E28E29E30E31E32E33E34E35E36E37E23SE24SE25SE26SE27SE28SE29SE30SE31SE32SE33SE34SE11.1.1CP11.1.2CP11.1.3CP11.1.4CP11.1.5CP11.2.1CP11.2.2CP11.2.3CP11.2.4CP1E2E3E4E5E6E7E8E9E10E11E12E13E14E15E16E17E18E19E20E21E22E25SE26SE27SE28SE29SE30SE31SE32SE33SE12.1.1CP12.1.2CP12.1.3CP12.1.4CP12.1.5CP12.2.1CPFuentes Salty Snacks, Inc. Six months ago Fuentes Salty Snacks, Inc. added a new flavor to its line of potato chips. The new flavor, candied bacon, was introduced through a nationwide rollout supported by an extensive promotional campaign. Fuentes' management is convinced that quick penetration into grocery stores is a key to the successful introduction of a new salty snack product, and management wants to determine whether availability of Fuentes' Candied Bacon Potato Chips is consistent in grocery stores across regions of the U.S. Fuentes Marketing department has selected random samples of 40 grocery stores in each of its eight U. S. sales regions: •New England (Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont) •Mid-Atlantic (New Jersey, New York, and Pennsylvania) •Midwest (Illinois, Indiana, Michigan, Ohio, and Wisconsin) •Great Plains (Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, Oklahoma, and South Dakota) •South Atlantic (Delaware, Florida, Georgia, Maryland, North Carolina, South Carolina, Virginia, Washington DC, and West Virginia) •Deep South (Alabama, Arkansas, Kentucky, Louisiana, Mississippi, Tennessee, and Texas) •Mountain (Arizona, Colorado, Idaho, Montana, Nevada, New Mexico, Utah, and Wyoming) •Pacific (Alaska, California, Hawaii, Oregon, and Washington) The stores in each sample were then contacted, and the manager of each store was asked whether the store currently carries Fuentes' Candied Bacon Potato Chips. The complete data set is available in the DATAfile named FuentesChips. Fuentes' senior management now wants to these data to assess whether penetration of Fuentes' Candied Bacon Potato Chips in grocery stores is consistent across its eight U.S. sales regions. If of Fuentes' Candied Bacon Potato Chips in grocery stores differs across its U.S. sales regions, Fuentes' management would also like to identify sales regions in which penetration of Fuentes' Candied Bacon Potato Chips is lower or higher than expected. Managerial Report Prepare a managerial report that addresses the following issues. 2. Use the data from Fuentes' study to test the hypothesis that the proportion of grocery stores that currently carries Fuentes' Candied Bacon Potato Chips is equal across its eight U.S. sales regions. Use =.05 .12.2.3CP12.3.1CP12.3.2CPTest the following hypotheses for a multinomial probability distribution by using the X2 goodness of fit test. H0:pA=.40,pB=.40, and pC=.20 H0: The probabilities are not pA=.40,pB=.40, And pC=.20 A sample of size 200 yielded 60 in category A, 120 in category B, and 20 in category C. Use =.01 and test to see whether the probabilities are as stated in H0 . a. Use the p-value approach. b. Repeat the test using the critical value approach.2EDuring the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M. audience proportions were recorded as ABC 29%, CBS 28%, NBC 25%, and independents 18%. A sample of 300 homes two weeks after a Saturday night schedule revision yielded the following viewing audience data: ABC 95 homes, CBS 70 homes, NBC 89 homes, and independents 46 homes. Test with =.05 to determine whether the viewing audience proportions changed.4E5E6E7E8E9E10E11E12E13E14E15E16E17E18EThe following sample data represent the number oflate and on-time flights for Delta, United, and US Airways (Bureau ofTransportation Statistics, March 2012). Formulate the hypotheses for a test that will determine whether the population proportion of late flights is the same for all three airlines. Conduct the hypothesis test with a .05 level of significance. What is the p-value and what is your conclusion? Compute the sample proportion of late flights for each airline. What is the overall proportion of late flights for the three airlines?20E21E22E23E24E34SE35SE36SE37SE38SE39SE40SE41SE42SE43SE44SE13.1.1CP13.1.2CP13.1.3CP13.2.1CP13.2.2CP13.2.3CP13.2.4CP13.2.5CP13.2.6CP13.2.7CP13.3.1CP13.3.2CP13.3.3CP13.3.4CP13.3.5CP13.3.6CP1E2E3E4E5E6E7E8E9E10E11E12E13E14E15E16E17E18E19E20E21E22E23E24E25E26E27E28E29E30E31E32E33E55SE56SE57SE58SE59SE60SE61SE14.1.aCP14.1.bCP14.1.cCP14.2.1CP14.2.2CP14.2.3CP14.3.1CP14.3.2CP14.3.3CP14.3.4CP14.4.1CP14.4.2CP14.4.3CP14.4.4CP14.4.5CP14.4.6CP14.5.1CP14.5.2CP14.5.3CP14.5.4CP14.5.5CP14.5.6CP14.5.7CP1E2E3E4E5E6E7E8E9E10E11E12E13E14E15E16E17E18E19E20E21E22E23E24E25E26E27E28E29E30E31E32E33E34E35E36E37E38E39E40E41E42E43E44E45E46E47E48EThe DATAfile named CostLiving contains the cost of living indexes and the population densities (number of people per square mile) for 61 cities in the United States. The cost of living index measures the cost of living in a particular city relative to the cost of living in New York City. San Francisco has an index of 112.15, meaning that is 12.15% more expensive to live in San Francisco than New York City. Washington DC has an index of 84.64, which means that the cost to live in Washington DC is only 84.64% of what it costs to live in New York City (Numbeo website, July 13, 2016). a. Develop the estimated regression equation that can be used to predict the cost of living index for a U.S. city, given the city's population density. b. Construct a residual plot against the independent variable. c. Review the residual plot constructed in part (b). Do the assumptions of the error term and model form seem reasonable?50E51E52E53E54E44SE45SE46SE47SE48SE49SE50SE51SE52SE15.1.1CP15.1.2CP15.1.3CP15.1.4CP15.1.5CP15.2.1CPPredicting Winnings for NASCAR Drivers Matt Kenseth won the 2012 Daytona 500, the most important race of the NASCAR season. His win was no surprise because for the 2011 season he finished fourth in the point standings with 2330 points, behind Tony Stewart (2403 points), Carl Edwards (2403 points), and Kevin Harvick (2345 points). In 2011 he earned $6,183,580 by winning three Poles (fastest driver in qualifying), winning three races, finishing in the top five 12 times, and finishingin the top ten 20 times. NASCAR's point system in 2011 allocated 43 points to the driver who finished first, 42 points to the driver who finished second, and so on down to 1 point for the driver who finished in the 43rd position. In addition, any driver who led a lap received 1 bonus point, the driver who led the most laps received an additional bonus point, and the race winner was awarded 3 bonus points. But the maximum number of points a driver could earn in any race was 48. Table 15.8 shows data for the 2011 season for the top 35 drivers (NASCAR website, February 28, 2011). Managerial Report 2. Develop an estimated regression equation that can be used to predict Winnings ($) given the number of poles won (Poles), the number of wins (Wins), the number of top five finishes (Top 5), and the number of top ten (Top 10) finishes. Test for individual significance and discuss your findings and conclusions.15.2.3CP15.2.4CP15.3.1CP15.3.2CP15.3.3CP15.3.4CP15.3.5CP