3. Twenty workers were randomly selected to participate in an experiment todetermine the effects of work scheduling and method of payment on attitude towardthe job. Two types of scheduling were employed: the standard 8- to- 5workday and aflexible workday allowing the worker to start at either 7 to 8 and to vary as desired.The two methods of payment were a standard hourly rate and a reduced hourly ratewith an added piece rate based on the worker's production. Five workers wererandomly assigned to each of the four Scheduling/ Payment combination. Eachworker completed an attitude test after6 months on the job (with a higher a moreindicating a more positive attitude). The test scores are:FactorsWorkScheduling8-to-5FlexibleUse a 0.05 level of significancePayment MethodHourly Rate68899076658284766075Hourly with Piece Rate78807482689286807684 Solution:Step 1: State the hypotheses.Ho:H₁:Step 2: The level of significance and critical region. α =Step 3: Compute for the value of one sample t test. tcomputed =Step 4: Decision rule.Step 5: Conclusion.df =and tritical =

Given: Payment method Hourly rate Hourly with Piece rate 8-to-5 68 78 89 80 90 74…

Answered: 3. Twenty workers were randomly…

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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Split the Bill? Exercise 2.153 describes a study to compare the cost of restaurant meals when people pay individually versus splitting the bill as a group. In the experiment half of the people were told they would each be responsible for individual meal costs and the other half were told the cost would be split equally among the six people at the table. The data in SplitBill includes the cost of what each person ordered (in Israeli shekels) and the payment method (Individual or Split). Some summary statistics are provided in Table 6.20 and both distributions are reasonably bell-shaped. Use this information to test (at a 5% level) if there is evidence that the mean cost is higher when people split the bill. You may have done this test using randomizations in Exercise 4.118. Table6.20Cost of meals by payment type Payment Sample size Mean Std. dev. Individual 24 37.29 12.54 Split 24 50.92 14.33
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B. A manufacturing company is analyzing its accident record. The accidents fall into two categories: ➤Minor-dealt with by first aider: Average cost k50 Major-hospital required. Average cost k1,000 The company has 1,000 employees, of which 180 are office staff and the rest work in the factory. The analysis shows that 10% of employees have an accident each year and 20% of accidents are major. It is assumed that an employee has more than one accident in a year. (i) Determine the expected total cost of accidents in a year. On further analysis it is discovered that a member of office staff has half the probability of having an accident relative those in the factory. (ii) Show that the probability that a given a member of office staff has an accident in a year is 0.0549. (iii) Determine the probability that a randomly chosen employee who has had an accident is office staff.
Your hospital is negotiating with medical insurance providers, who would like to reduce the amount they pay as reimbursement for hospital stays. For a particular procedure, they would like to reduce payment by $300 and have patients go home one day earlier. To see what effect this would have on hospital costs, a random sample of 50 patients who were recently admitted for this procedure was analyzed. Had they left one day earlier, the average hospital cost would have been $322.44 less, and the standard deviation was found to be $21.71. Construct a 95% confidence interval for the mean net savings for the hospital, per patient, for the larger population of recent patients.
Choose the correct answer. On Day 1 of a technology conference in San Diego, 15 presenters who were setting up for their sessions in Annex C became ill with flu-like symptoms. During the course of the conference, 20 participants who attended sessions in Annex C also became ill with the same symptoms. To begin calculating the rate of this outbreak, investigators should first determine A) the size of the conference population, B) the number of cases of illness, C) the number of days the conference was held, D) the location of the conference?
Select one: a. time-series b. cross sectional c. panel Business School Full-Time Enrollment Students per Faculty Local Tuition ($) Foreign Tuitiion ($) English Test Work Experience Starting Salary ($) 1 Melbourne Business School 200 5 24,420 29,600 No Yes 71,400 2 University of New South Wales (Sydney) 228 4 19,993 32,582 No Yes 65,200 3 Indian Institute of Management (Ahmedabad) 392 5 4,300 4,300 No No 7,100 4 Chinese University of Hong Kong 90 5 11,140 11,140 No No 31,000 5 International University of Japan (Niigata) 126 4 33,060 33,060 Yes No 87,000 6 Asian Institute of Management (Manila) 389 5 7,562 9,000 No Yes 22,800 7 Indian Institute of Management (Bangalore) 380 5 3,935 16,000 No No 7,500 8 National University of Singapore 147 6 6,146 7,170 Yes Yes 43,300 9 Indian Institute of Management (Calcutta) 463 8 2,880 16,000 No No 7,400 10 Australian National University (Canberra) 42 2 20,300 20,300 Yes Yes 46,600 11 Nanyang Technological…
1. A crosstabulation of type of customer (regular or promotional) versus net sales in Excel. Comment on any similarities or differences observed? ( I tried but fail to get it right can you show step by step how you did it.) Below Excel Sheet Customer Type of Customer Items Net Sales Method of Payment Gender Marital Status Age 1 Regular 1 39.50 Discover Male Married 32 2 Promotional 1 102.40 Proprietary Card Female Married 36 3 Regular 1 22.50 Proprietary Card Female Married 32 4 Promotional 5 100.40 Proprietary Card Female Married 28 5 Regular 2 54.00 MasterCard Female Married 34 6 Regular 1 44.50 MasterCard Female Married 44 7 Promotional 2 78.00 Proprietary Card Female Married 30 8 Regular 1 22.50 Visa Female Married 40 9 Promotional 2 56.52 Proprietary Card Female Married 46 10 Regular 1 44.50 Proprietary Card Female Married 36 11 Regular 1 29.50 Proprietary Card Female Married 48 12 Promotional 1 31.60 Proprietary Card Female Married 40 13 Promotional…
Urgent Care is organized in to 4 department: Registration (Reg), Waiting (Wait), Treatment (Treat), and Payment & Check Out (PCO). For all patients who receive treatment at the Urgent Care, the expected time (in minutes) per patient needed in each of the departments: Reg. Wait. Treatment PCO 10 15 30 3 or 2 All patients enter and register at the registration cubicle. After registering, 10% of the patients walk out without waiting and seeing the physician for treatment. However, still they have to walk through the PCO & return the admissions slip. These patients need only 2 min at PCO (instead of 3 min). No waiting and treatment time for patients who walk out. Simulate the total time spent in the Urgent care for the first patient. Total time spent by Patient 1 at the Urgent Care is . RN: 0.05 Hint: Need to check (simulate) whether a patient, after registering( 10 min), walks out or not. O 2 min O 12 min O 10 min O None of these
Recent revenue shortfalls in a southern state led to a reduction in the state budget for higher education. To offset the reduction, the largest state university proposed a 20%20% tuition increase. It was determined that such a large increase was needed to simply compensate for lost support from the state. Random samples of 100 freshmen, 100 sophomores, 100 juniors, and 100 seniors from the university were asked whether they were strongly opposed to the increase, given that it was the minimum increase necessary to maintain the university’s budget at current levels. The results are given in the table. Strongly opposed Freshman Sophomore Junior Senior Yes 78 72 58 36 No 22 28 42 64 What is the contribution to the chi‑square statistic from the cell of strongly opposed juniors? = 0.1551 =3 =9 =0.1475
(b) Table 1 shows consumables usage data from a leading manufacturer. Forecast the demand for August, September and October using: i) a three-month moving average ii) a four-month weighted moving average using 50 percent of the actual usage for the most recent month, 20 percent of two months ago, 15 percent of three months ago and 15 percent of four months ago. Using an example, explain what are the benefits of using the weighted moving average method of forecasting instead? Month February 2023 March 2023 April 2023 May 2023 June 2023 July 2023 Consumables Used 884 892 972 990 956 880
Sandhill Company completes and transfers out 13,720 units and has 1,960 units of ending work in process that are 25% complete as to conversion costs. Materials are entered at the beginning of the process, and there is no beginning work in process. Assuming unit. materials costs of $3 and unit conversion costs of $5 , what are the costs to be assigned to units (a) completed and transferred out and (b) in ending workingrocess?
B. A manufacturing company is analyzing its accident record. The accidents fall into two categories: ➤Minor-dealt with by first aider: Average cost k50 Major-hospital required. Average cost k1,000 The company has 1,000 employees, of which 180 are office staff and the rest work in the factory. The analysis shows that 10% of employees have an accident each year and 20% of accidents are major. It is assumed that an employee has more than one accident in a year. (i) Determine the expected total cost of accidents in a year. On further analysis it is discovered that a member of office staff has half the probability of having an accident relative those in the factory. (ii) Show that the probability that a given a member of office staff has an accident in a year is 0.0549. (iii) Determine the probability that a randomly chosen employee who has had an accident is office staff.

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