Chapter 12, Problem 12.83CRP

Question 2 Quality Air Conditioning manufactures three home air conditioners: an economy model, a standard model, and a deluxe model. The profits per unit are $63, $95, and $135, respectively. The production requirements per unit are as follows:   PLEASE ANSWER D to G . If there are two possible answers one will suffice. Where necessary a range analysis must be shown. a) The profit per unit for deluxe model was increased to 150 per unit. Evaluate the effect b) . Identify the range of optimality for each objective function coefficient (unit profit). Suppose the profit for the economy model is increased by $6 per unit, the profit for the standard model is decreased by $2 per unit, and the profit for the deluxe model is increased by $4 per unit. (use the 100% rule)What will be the new optimal solution be?   c) If the number of fan motors available for production is increased by 100, evaluate the effect. d) What are the allowable values within the number of cooling coils can vary without…

The sales manager of a large automotive parts distributor wants to estimate the total annual sales for each of the company’s regions.  Three factors appear to be related to regional sales: the number of retail outlets in the region, the total personal income of the region, and the number of cars registered in the region. The following table shows the data for 10 regions that were gathered for last year sales.    The excel data file for this problem is:final exam question 6B spring 2021.xlsx     Region Annual sales  ($ million) Number of retail outlets Number of automobiles registered (million) Personal income ($ billion) 1 37.702 1,739 9.27 85.4 2 24.196 1,221 5.86 60.7 3 32.055 1,846 8.81 68.1 4 3.611 120 4.81 20.1 5 17.625 1,096 10.31 33.8 6 45.919 2,290 11.62 95.1 7 29.600 1,687 8.96 69.3 8 8.114 241 6.28 16.5 9 20.116 649 7.77 34.9 10 12.994 1,427 10.92…

Case. 15.1. Ski Jacket Production. Egress, Inc., is a small company that designs, produces, and sells ski jackets and other coats. The creative design team has labored for weeks over its new design for the coming winter season. It is now time to decide how many ski jackets to produce in this production run. Because of the lead times involved, no other production runs will be possible during the season. Predicting ski jacket sales months in advance of the selling season can be quite tricky. Egress has been in operation for only three years, and its ski jacket designs were quite successful in two of those years. Based on realized sales from the last three years, current economic conditions, and professional judgment, 12 Egress employees have independently estimated demand for their new design for the upcoming season. Their estimates are listed in Table 15.2 To assist in the decision on the number of units for the production run, management has gathered the data in Table 15.3. Note that S…

Question 6 The University of Dar es Salaam Silver Sands Hotel has a capacity of 20 rooms. From the historical data, the hotel coordinator estimated that approximately 0.15 of all confirmed reservations will turn out to be "no-shows". As a mitigation strategy to avoid idle rooms, the hotel accepts confirmed reservations for as many as 25 rooms. However, if more confirmed reservations arrive than there are rooms, the overbooked guests will have to be sent to a nearby hotel and given a complimentary dinner. Required If the hotel currently has 25 confirmed reservations, find a) the probability that no customers will be sent to another hotel b) the probability that exactly 2 guests will be sent to another hotel c) the probability that 3 or more guests will be sent to another hotel

Read the following scenario describing a research project, and then write a short criticism of this project. You should clearly identify at least four aspects of the project which you believe are incorrect or poor. These may relate to the research question, the experimental design, the analysis and reporting, and/or any ethical or academic misconduct issues. For each criticism which you identify, clearly describe the problem and state how it should have been addressed to improve the quality of the research. Question 15.A company providing on-line teaching software claims that students who are on-line students achieve better results on learning programming languages than on campus students. The company has developed a hypothesis based on this claim. The company chose one university to conduct research to test this hypothesis. It applied for research ethics clearance and at the same time included both on-line and oncampus students to participate in this experiment. At the end of…

Discuss two extensions to the original GARCH (p,q) model and explain additional characteristics of financial data they might be able to capture.

Problem 4. Suppose we use the GSS data to examine the relationship between education attainment (RDEGREE: 0 = less than high school, 1 = high school degree, 2 = some college or more) and the variable HELPPOOR, which measures support for the statement that the government should do everything possible to improve the standard of living of all poor Americans (see table below).       Less than HS degree High school degree Some college or more Total Should government improve standard of living?           1 = Government action 30 65 32 127   2 6 32 41 79   3 = Agree with both 32 153 126 311   4 6 56 58 120   5 = People help selves 14 69 35 118 Total   88 375 292 755   Use the procedure we learned in class to calculate the value of Chi-square. Present the expected values for each cell in a table. Then, report the value Chi-square value. Using an alpha of 0.05, do you reject the…

Question 2 Jensen Tire & Auto is in the process of deciding whether to purchase a maintenance contract for its new computer wheel alignment and balancing machine. Managers feel that maintenance expense should be related to usage, and they collected the following information on weekly usage (hours) and annual maintenance expense (in hundreds of dollars). Weekly Usage (hours) Annual Maintenance Expense 13 17.0 10 22.0 20 30.0 28 37.0 32 47.0 17 30.5 24 32.5 31 39.0 40 51.5 40.0 38 a. Develop the estimated regression equation that relates annual maintenance expense to weekly usage. b. Test the significance of the relationship in part (a) at .05 level of significance. C. What is your conclusion at the .05 level of significance?

Question #34 The owner of a small deli is trying to decide whether to discontinue selling magazines. He suspects that only 9% of his customers buy a magazine and he thinks that he might be able to use the display space to sell something more profitable. Before making a final decision, he decides that for one day he will keep track of the number of customers that buy a magazine. Assuming his suspicion that 9% of his customers buy a magazine is correct, what is the probability that exactly 6 out of the first 10 customers buy a magazine? 0.0000367300 0.0000674675 0.0000234680 0.0000814185 0.0000341752 0.0000765314