Activity Instruction For this assignment, you will practice applying statistical inference to business decision scenarios. Complete all of the following scenarios: Scenario 1 The manager of the Gander Mountain store in Frogtown, IL, believes that his prices for ammunition are lower than the prices of his primary competitor in the hunting equipment market, Cabela's. He would like to be able to provide evidence to support this assertion. What are the Gander Mountain manager's null and alternative hypotheses? How should he go about taking samples to gather data for testing the hypotheses? What statistical test should he use to test his hypothesis, using the data he has collected? Scenario 2 To complete this scenario, use the Golf Ball Distance Test Excel file linked in the Resources. A major manufacturer of golf equipment seeks to improve its market share by introducing a golf ball that is less likely to slice when hit. The company's research and development group has been experimenting with dimple patterns that promote straight flight, and have achieved some degree of success. The vice president of marketing, however, is worried about the effect that the new pattern might have on driving distance. "I do not care how slice-resistant this ball is, if it does not go as far as the old one, no one is going to buy it. Telling a golfer to buy some ball that cannot be driven as far as the old one is a complete non-starter," he commented to the development project manager. To investigate this issue, the research and development group did a test to compare the driving distances for the two balls: 40 balls of the new type, and 40 of the old. They used a mechanical hitting machine to control all factors other than the balls themselves. The resulting data of distance measured to the nearest yard for each of the 80 balls that were hit is provided in the Golf Ball Distance Test Excel file. What is the null hypothesis that the research and development group is testing? Analyze the data in the Excel file. What is the appropriate statistical test for determining the null hypothesis? What is the p-value? What should you tell the vice president of marketing? Scenario 3 To complete this scenario, use the Sammy's Subs Sales Data Excel file linked in the Resources. Sammy, the owner of a fast food chain called Sammy's Subs, wants to know whether the levels of daily sales are different between his shop in Edina and the one in Richfield. He records sales in each shop for a month, in the Sammy's Subs Sales Data Excel file. Use the data in this file to determine whether sales levels are different between the two stores at the .05 level of significance. State the null hypothesis, and explain how you determined whether to reject it. Scenario 4 To complete this scenario, use the Mall Time Interview Results Excel file linked in the Resources. Management at the Mall of Elbonia wanted to determine how much time customers spend at the mall. Four surveys were administered on four different days by randomly selecting individuals as they were returning from the mall to the parking lot, and asking them to participate. One of the questions asked was how much time the customer had spent in the mall on that day. The results of the survey are provided in the Mall Time Interview Results Excel file. Columns A through D show the time spent by the customers interviewed, according to the weekday and time of day when the interviews occurred. Is there any statistically significant difference (at alpha = .05) in the average amount of time people spend in the mall, based on the weekday and time? Explain how you determined the answer to that question. Scenario 5 To complete this scenario, use the Seafood Prices Sample Excel file linked in the Resources. You manage a grocery chain advertising account, and need to gather some data to support a campaign you are planning with your client, Rainbow Foods. The campaign will focus on seafood, and you need data to support your supposition that your client has the lowest prices, as compared to Cub Foods, Byerly's, and Kowalski's. The client points out that you need to include a control for the type of seafood. You agree on five categories: 30-count wild shrimp, in shells. Fillets of farmed tilapia. Alaskan king crab legs. Steaks of wild caught salmon. Cod fillets. Refer to the Seafood Prices Sample Excel file for the data results to determine whether the data supports your campaign supposition. Assignment Submission Create all of your answers in a single Microsoft Word file and copy the Excel output, including graphics, into that document. Submit the file for grading and instructor feedback. Refer to the Comparing Populations Using Statistical Inference Scoring Guide prior to submission to ensure you meet all evaluation criteria. Make graphs if needed, thanks.,Thank you, I will look into this.,Thanks for all the help, it looks great.
Paper#13307 | Written in 18-Jul-2015Price : $25