2Required informationThe article "Multi-objective Scheduling Problems: Determination of Pruned Pareto Sets" (H. Taboada and D. Coit, IIETransactions, 2008:552-564), presents examples in a discussion of optimization methods for industrial scheduling andproduction planning. In one example, seven different jobs were performed on each of five machines. The means andstandard deviations of the processing times for each machine are presented in the following table.MachineMeanSDSample SizeA25.4310.677B23.7113.927kC44.5715.907tDE23.1412.75758.0019.117i<ncesConstruct an ANOVA table. (Enter your Sum of Squares, Mean Sum of Squares, and F calculations rounded to three decimal places.)SourceDFMachineSSMSPF(Click to select)ErrorTotal

Answered: 2 Required information The article…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Suppose you have been hired as a management consultant by a major oil company to help it optimally price gasoline at its service stations. Your client would like your team to perform a study on customers' gasoline purchasing habits when they notice an increase in the price of gas. You have access to the following groups of people: Group Description Number in Group People who have not noticed a gas-price increase 30 People who drive electric cars 35 People who have recently noticed a gas-price increase 80 People who ride their bikes to work 20 People who ride the bus 100 To set up your experiment on how price-increase awareness impacts customer behavior, you would have ______ people in your treatment group and ______ people in your control group.
The article "Multi-objective Scheduling Problems: Determination of Pruned Pareto Sets" (H. Taboada and D. Coit, IIE Transactions, 2008:552-564), presents examples in a discussion of optimization methods for industrial scheduling and production planning. In one example, seven different jobs were performed on each of five machines. The cost of each job on each machine is presented in the following table. Assume that it is of interest to determine whether costs differ between machines, but that it is not of interest whether costs differ between jobs. Job Machine 2 16 24 18 22 26 20 22 B 22 18 30 20 28 18 26 12 12 15 18 22 12 16 D 18 28 16 26 34 18 18 14 14 11 16 18 10 12 a. Identify the blocking factor and the treatment factor. b. Construct an ANOVA table. You may give ranges for the P-values. Can you conclude that there are differences in costs between some pairs of machines? Explain. d. Which pairs of machines, if any, can you conclude, at the 5% level, to have differing mean costs? C.…
The article "Multi-objective Scheduling Problems: Determination of Pruned Pareto Sets" (H. Taboada and D. Coit, IIE Transactions, 2008:552–564), presents examples in a discussion of optimization methods for industrial scheduling and production planning. In one example, seven different jobs were performed on each of five machines. The means and standard deviations of the processing times for each machine are presented in the following table. Machine Sample Size Mean SD A 25.43 10.67 23.71 13.92 44.57 15.90 D 23.14 12.75 58.00 19.11 Construct an ANOVA table. You may give a range for the P-value. Can you conclude that there are differences among the mean processing times? a. b.
In an LTL (less-than-truckload) trucking company, terminal docks include casual work- ers who are hired temporarily to account for peak loads. At the Omaha, Nebraska, dock, the minimum demand for casual workers during the seven days of the week (starting on Monday) is 20, 14, 10, 15, 18, 10, 12 workers. Each worker is contracted to work five con- secutive days. Determine an optimal weekly hiring practice of casual workers for the company.
A local bank has two branches in a cty: one in the business center of the city and another-in a residential area. The bank's operations manager wants to Improve front-office employee scheduling during the lunch hour (12:00-13:00) period. The manager starts with studying the customer walting times at the two branches and collects data for two groups of 35 customers at each branch. Customers at the business-center branch walted on average 3.8 minutes, whle those at the residential branch waited 4.4 minutes on average, Assume that the population standard deviations are 1.8 (business-center branch) and 2.5 tresidential branch). a. Considering the real-ife problem, determine the point estimate of the unknown quantity that needs to be estimated. (Round to two decimal places.) b. Determine the critical value needed to compute a Bs confidence interval (Round to two decimal places.) c. Compute the confidence interval the operations manager would be interested in computing using the confidence…
A developmental psychologist interested in the attachment between full-term and pre-term infants and their mothers conducted a study to measure infant willingness to explore a strange environment by counting the number of toys infants handled during a five minute interval. Four groups of infants, two comprised of full-term infants and two of per-term infants, were observed both when their mothers were present and when their mothers were absent. The data is presented in the table that follows: Baby Birth Condition | Mother 1 # of Toys (toys) Identify one of the independent variables: Full-term Present Present 2 Full-term 6. 3 Full-term Present Present Full-term Full-term Full-term Full-term Full-term 4 5 Absent 6. 6. Absent 4 Absent 5 Absent Identify the other independent variable: 7 4 9. Pre-term Present 6. 10 Pre-term Present 7 11 Pre-term Present 5 12 Pre-term Present 4 Identify the dependent variable: 13 Pre-term Absent 3 14 Pre-term Pre-term Pre-term Absent 4 15 Absent 4 16 Absent…
The Internet is rapidly becoming an essential source of information about health, nutrition, finances, and current events. Neunschwander, Abbott, and Mobley (2012) were interested in inequality of access to the Internet as a function of the characteristics of the participant. They recruited a very large sample of participants from the Indiana Supplemental Nutrition Assistance Program and surveyed them about their access to the technology. They observed that racial minorities, older persons, and persons with lower educational attainment were less likely to have a functioning computer at home and, relatedly, were less likely to have access to the Internet. Below are frequencies similar to those observed by the researchers. Owns a Computer Does Not Own a Computer Age: 18-30 378 336 Age: 71 and Older 23 127 Does the proportion of participants who own a computer differ significantly from group to group? Test with alpha = .05. Compute Cramer’s V to measure…
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Nana AB. supplies a range of computer hardware and software to 2000 schools within a large municipal region of Spain. When Nana AB. won the contract the issue of customer service was considered to be central to the company being successful at the final bidding stage. The company has now requested that its customer service director creates a series of graphical representations of the data to illustrate customer satisfaction with the service. The following data has been collected during the last six months and measures the time to respond to the received complaint (days).52434661563832 87783496745423 5632861281325253 3445213142125321 437662127336712 7889261074782332 2621567891851512 1556452145262134 2812672324432565 238872178547679 The customer service director has analysed this data to create a grouped frequency table and plotted the histogram. From this he made a series of observations regarding the time to respond to customer complaints. He now wishes to extend the analysis to use…
With regard to grouping quantitative data into classes in which each class represents a range of possible values, there are two methods for depicting the classes. Identify the two methods and explain the relative advantages and disadvantages of each method. Identify the two methods and explain the relative advantages and disadvantages of each method. A. The methods are single-value grouping and cutpoint grouping. Both methods can be used when there are only a small number of distinct values. Single-value grouping is best used when the data are expressed as whole numbers, while cutpoint grouping is best used when the data are continuous and are expressed with decimals. B. The methods are single-value grouping and limit grouping. These methods can only be used when the data are discrete. Single-value grouping is best used when there are a small number of distinct values, while limit grouping is best used when there are a large number of distinct values.…
The article "A Robust Optimization Approach for the Capacitated Vehicle Routing Problem with Demand Uncertainty" (I. Sungur, F. Ordonez, and M. Dessouky, IIE Transactions, 2008:509-523) discusses methods to reduce transportation costs while satisfying demands. In one study, the percent demand that is unmet (y) and the percent of vehicle capacity (x) needed to meet the expected demand were recorded for 27 different scenarios. The results are presented in the following table. х У 0.5 82 0.0 0.7 1.3 0.8 11 0.9 1.2 1.3 0.2 0.8 1.4 0.9 1.4 0.4 1.7 93 11 93 0.8 90 0.3 0.2 1.0 1.0 89 1.0 93 1.3 91 1.3 94 1.2 94 0.7 Compute the least-squares line for predicting unmet demand (y) from vehicle capacity (X). b. Compute 95% confidence intervals for B, and B,- Predict the unmet demand when the vehicle capacity is 93%. d. a. c. Find a 95% confidence interval for the mean unmet demand when the vehide capacity is 93%. Find a 95% prediction interval for the unmet demand for a scenario whose vehicle…

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