Bianca is conducting an experiment to determine how temperatures affect the productivity of employees. She has just completed the first phase of her experiment, in which she had a group of employees perform job-related tasks in a special room where the temperature was 10 degrees cooler than on the factory floor. The employees in the experimental group consistently outperformed employees in the factory. The Hawthorne effect suggests that the most likely reason for this improvement in performance is that the cooler working conditions allowed the employees in the experiment to work harder without getting tired. Group of answer choices True False

Bianca is conducting an experiment to determine how temperatures affect the productivity of employees. She has just completed the first phase of her experiment, in which she had a group of employees perform job-related tasks in a special room where the temperature was 10 degrees cooler than on the factory floor. The employees in the experimental group consistently outperformed employees in the factory. The Hawthorne effect suggests that the most likely reason for this improvement in performance is that the cooler working conditions allowed the employees in the experiment to work harder without getting tired. Group of answer choices True False

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter10: Introduction To Simulation Modeling

Section: Chapter Questions

Problem 41P: At the beginning of each week, a machine is in one of four conditions: 1 = excellent; 2 = good; 3 =...

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At the beginning of each week, a machine is in one of four conditions: 1 = excellent; 2 = good; 3 = average; 4 = bad. The weekly revenue earned by a machine in state 1, 2, 3, or 4 is 100, 90, 50, or 10, respectively. After observing the condition of the machine at the beginning of the week, the company has the option, for a cost of 200, of instantaneously replacing the machine with an excellent machine. The quality of the machine deteriorates over time, as shown in the file P10 41.xlsx. Four maintenance policies are under consideration: Policy 1: Never replace a machine. Policy 2: Immediately replace a bad machine. Policy 3: Immediately replace a bad or average machine. Policy 4: Immediately replace a bad, average, or good machine. Simulate each of these policies for 50 weeks (using at least 250 iterations each) to determine the policy that maximizes expected weekly profit. Assume that the machine at the beginning of week 1 is excellent.
Grain dust is pound for pound more explosive than coal dust or gunpowder. Ignited by an electrostatic discharge or other cause, it has ripped apart grain silos and has killed or wounded many workers over the years. When 54 people were killed during Christmas week 1977, grain handlers and the U.S. government finally decided to combat dust accumulation.10 Ten years, 59 deaths, and 317 serious injuries later, a compromise standard was agreed on that designates dust accumulation of one-eighth inch or more as dangerous and impermissible in silos in the United States. Nevertheless, on Monday, June 8, 1998, a series of explosions killed seven workers performing routine maintenance at one of the largest grain elevators in the world, demolishing one of the 246 concrete, 120-feet-high silos that stretch over a length of one-half mile in Haysville, Kansas. Discuss grain facility explosions as a case study of workplace safety and rule making: Which ideas concerning acceptable risk apply here? My…
No probabilities are known for the occurrence of the nature states. Compare the solutions obtained by each of the following criteria: Savage
Employees at Precision Engine Parts Company produce parts according to exact design specifications. The employees are paid according to a piece-rate system, wherein the faster they work and the more parts they produce, the greater their chances for monthly bonuses. Management suspects that this method of pay may contribute to an increased number of defective parts. A specific part requires a normal, standard time of 23 minutes to produce. The quality control manager has checked the actual average times to produce this part for 10 different employees during 20 days selected at random during the past month and determined the corresponding percentage of defective parts, as follows: Develop a linear regression model relating average production time to percentage defects to determine whether a relationship exists and the percentage of defective items that would be expected with a normal production time of 23 minutes.
Summarize the following text: Currently, every month, an associate looks at the survey results and analyzes the results of 10,000 unhappy customers with the help of several variables (such as issue resolution time, answering calls, claims processing etc.) affecting customer satisfaction. Based on this analysis drivers (variables) causing unhappiness are identified. Using these results, strategies are designed with the hope that they will eventually enhance customer satisfaction. This entire activity takes 20 hours associates’ time. After this, the manager will also have to review these results to decide on deploying these strategies. The manger review will take 5 hours.
Using traditional methods, it takes 101 hours to receive a basic driving license. A new license training method using Computer Aided Instruction (CAI) has been proposed. A researcher used the technique with 100 students and observed that they had a mean of 102 hours. Assume the variance is known to be 16. A level of significance of 0.05 will be used to determine if the technique performs differently than the traditional method. Find the value of the test statistic. Round your answer to 2 decimal places. Enter the value of the test statistic.
A company that makes kitchen chairs wants to compareproductivity at two of its facilities. At facility #1, six workersproduced 240 chairs. At facility #2, four workers produced 210chairs during the same time period. Which facility was moreproductive?
Hydronos is a Greek manufacturer of yogurts that have gained popularity in the United States, so it has recently built a U.S. production plant and distribution center. To ensure that it complies with U.S. environmental standards, Hydronos is planning to implement efforts to reduce emissions and other industrial waste at its manufacturing plants using a program called Green-100. Green-100 covers all company procedures, from reducing manufacturing emissions, to how the lights are controlled in the plant, to how the truck drivers complete their routes. For example, under the new Green-100 guidelines, Hydronos has measured the amount of fuel drivers need to complete their routes for traveling at moderate speeds. If drivers choose to drive at higher speeds, they will need to pay for any extra fuel they use. Hydronos also has plans to install speed governors in its fleet of trucks to ensure that the drivers do not exceed speeds of 80 miles per hour. Mangements' claim that the new technology…
Hydronos is a Greek manufacturer of yogurts that have gained popularity in the United States, so it has recently built a U.S. production plant and distribution center. To ensure that it complies with U.S. environmental standards, Hydronos is planning to implement efforts to reduce emissions and other industrial waste at its manufacturing plants using a program called Green-100. Green-100 covers all company procedures, from reducing manufacturing emissions, to how the lights are controlled in the plant, to how the truck drivers complete their routes. For example, under the new Green-100 guidelines, Hydronos has measured the amount of fuel drivers need to complete their routes for traveling at moderate speeds. If drivers choose to drive at higher speeds, they will need to pay for any extra fuel they use. Hydronos also plans to install speed regulators in its fleet of trucks to ensure that the drivers do not exceed speeds of 60 miles per hour. If drivers choose to drive at higher speeds,…
Which experimental method involves randomly assigning participants to one of two groups in order to collect data and compare the performance of two distinct options? This method has been emphasized in various tech companies (e.g., Amazon, Netflix, Rent the Runway), and it is an useful method for uncovering causality between variables. Most tech companies heavily use this method for their data analytics process. Multivariate testing Bucket testing Web usability testing A/B testing Conjoint analysis
I need help with this practice problem A firm cleans chemical tank cars in the Bay St. Louis area. With standard equipment, the firm typically cleaned 85 chemical tank cars per month. They utilized 15 gallons of solvent, and two employees worked 20 days per month, 8 hours a day. The company decided to switch to a larger cleaning machine. Last April, they cleaned 55 tank cars, and only worked 15 days of the month. They utilized 13 gallons of solvent, and the two employees worked 6 hours a day. *type in only the values & indicate negative values by a "-" sign *round all values to 3 decimals, unless indicated otherwise (d) With the larger machine, the raw material productivity is _______ chemical tanks per gallon of solvent, and their labor productivity is ______ chemical tanks per labor hour. (e) The percentage change in material productivity is _____ %, while the percentage change in labor productivity is ________ %.
The gap theory measures A.levels of satisfaction by comparing the service received to the service that was expected B.satisfaction or dissatisfaction by measuring the gap between the service a customer received and the service that was expected. C.service quality by evaluating the level of performance of the service provider and the level of satisfaction with the service encounter D.service quality by measuring the gap between the service a customer received and the service that was expected.