A chain of home health care firms in Lousiana needs to locate a central office from which to conduct intemal audits and other periodic reviews of its facilties. These tacilines are scatered throughout the state, as detailein the following table. Each site, except for Houma, wil be visited three times each year by a team of workers, who will drive from the central offce to the site. Houma will be visited five times a yearMap CoordinatesCityCovngtonDonaldsonvite923.52.87.1Houma7814Monroe508.1Natchitoches3.06.5New Iberia5.72.13.9OpelousasRuston504.0For the location of the new oentral office, the coordinates should be near(round your response to two decimal places)

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Answered: A chain of home health care firms in…

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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Stays in Europe and the Mediterranean. The Bureau of Economic Analysis gathers information on the length of stay in Europe and the Mediterranean by U.S. travelers. Data are published in Survey of Current Business. The following stem-and-leaf diagram portrays the length of stay, in days, of a sample of 36 U.S. residents who traveled to Europe and the Mediterranean last year.
A company studied the number of lost-time accidents occurring at its Brownsville, Texas, plant. Historical records show that 7% of the employees suffered lost- time accidents last year. Management believes that a special safety program will reduce such accidents to 5% during the current year. In addition, it estimates that 15% of employees who had lost-time accidents last year will experience a lost-time accident during the current year. a. What percentage of the employees will experience lost-time accidents in both years (to 2 decimals)? % b. What percentage of the employees will suffer at least one lost-time accident over the two-year period (to 2 decimals)? %
conline.austincc.edu/webapps/assessment/take/launch.jsp?course_assessment_id%3= 756751_1&course_id= 846. * Question Completion Status: QUESTION 3 An elementary school student comes down with a stomach virus the day after she swims at the local pool. Her father warns other parents at the school that the pool is unsanitary and causes virus to spread. What should the parents conclude? Choose the best answer. O The pool is indeed unsanitary and causes viruses to spread. O The pool is not unsanitary and does not cause viruses to spread. O There is an association between people visiting the pool and increased reports of viruses. O There is no association between people visiting the pool and increased reports of viruses. O Nothing can be concluded because this is an anecdote. QUESTION 4 10 Is the following an observational study or an experiment? Take a random sample of people at a fitness center. Ask them if they use resistance bands or not. Compare the average muscle mass for those who do…
The table to the right represents the annual percentage of smartphones sold in a certain region in 2011, 2012, and 2013 (projected). a. What conclusions can you reach about the market for smartphones in 2011, 2012, and 2013? b. What differences are there in the market for smartphones in 2011, 2012, and 2013? a. Select all that apply. A. Type 6 had the smallest or close to the smallest percentage of smartphones sold in all three years. B. Type 3 had the second largest percentage of smartphones sold in all three years. C. Type 1 had the largest percentage of smartphones sold in all three years. D. Type 5 had the smallest or close to the smallest percentage of smartphones sold in all three years. E. Type 2 had the second largest percentage of smartphones sold in all three years. Туре Type 1 Type 2 Type 3 Type 4 Type 5 Type 6 2011 44% 21% 21% 10% 1% 3% 2012 69% 16% 4% 6% 3% 2% 2013 63% 17% 1% 3% 13% 3%
Surveys were conducted with every 7 households in Muscogee County, asking individuals to report information on their household, such as age, sex, race, education, income levels, and current health care needs. The purpose of the study was to describe the population of Muscogee County and assess the current health care needs of its constituents. 3. What research design was likely used to conduct this research? a. Case report b. Case series c. Ecological Study d. Cross-sectional (descriptive) e. Cross-sectional (analytic) f. Case-control study g. Retrospective cohort study h. Prospective cohort study i. Randomized clinical trial
The following data represent the monthly phone use, in minutes, of a customer enrolled in a fraud prevention program for the past 20 months. The phone company decides to use the upper fence as the cutoff point for the number of minutes at which the customer should be contacted. What is the cutoff point? 361 543 355 353 460 408 494 517 324 542 424 353 307 388 318 369 532 516 308 483 The cutoff point is minutes. (Round to the nearest minute.)
The Bureau of Labor Statistics reports on a variety of employment statistics. "College Enrollment and Work Activity of 2004 High School Graduates" provides information on high school graduates by gender, by race, and by labor force participation as of October 2004.³ (All numbers are in thousands.) The following two tables provide information on the “Labor force status of persons 16 to 24 years old by educational attainment and gender, October 2004." Using the information contained in the tables, do Exercises 4.58 through 4.62. OS LabForce Women, Age 16 to 24 < High School HS degree Some college Civilian Labor Force Employed Unemployed 662 2,050 1,352 Bachelors degree or more 921 Column Total 4,985 For Males: P{CLF | HSD} P{CLF | BD} 205 334 126 Click here for the Excel Data File 55 720 For Females: P{EMPI (CLF and HSD)} P{EMP | (CLF and BDM)} P{CLF | HSD} P{CLF | BD} Not in Labor Force 759 881 321 105 2,066 P{EMPI (CLF and HSD)} P{EMPI (CLF and BDM)} Row Total 1,626 3,265 1,799…
A social worker in South Phoenix delivered an intervention on financial literacy. The program is six weeks long (one hour per week). She collected pre and post- test surveys in order to determine if participants’ knowledge on financial literacy increased due their involvement in the program. Review the table below and answer the following questions. Table 1. Financial literacy intervention change from pre to post test M SD t p Financial Literacy Knowledge 5.04 .001 Pre test 7.25 1.78 Post test 8.42 1.20 1. Was a dependent or independent t-test used to analyze the data? How do you know?
Motorcycle Safety: As part of a study on motorcycle safety, the Texas Department of Motor Vehicles (DMV) collected data on the number of serious motorcycle accidents per 1000 licenses and the percentage of licensed drivers under the age of 25 in a sample of 42 counties. Data was collected over a one-year period follow and is contained in the attached data file named Motorcycles. Prepare a report that addresses the following: a. Develop numerical and graphical summaries of the data. b. Use regression analysis to investigate the relationship between the number of serious motorcycle accidents and the percentage of drivers under the age of 25. Discuss your findings. c. What conclusion and recommendations can you derive from your analysis?
Mariah Jacobsen is the marketing manager at ABC Electronics, a major consumer electronics supplier in the northwest. Over the last five years, sales of the company's flagship product - the Wizer Anonymizer (the WA) - have been 45000, 45500, 44500, 46000 and 44000 units. This rate of sales is considered average for the product over the last twenty years or so. Ms. Jacobsen believes that the distribution of the WA's sales is normal with a standard deviation of 1500 units. If she were asked to make a forecast of next year's sales to upper management, what is the likelihood that she would be correct if she predicts sales between 43000 and 46000?
Vitamin E and the Risk of Prostate Cancer: Klien et al (2011) conducted the following study to determine the effect of vitamin E and selenium treatment on the risk of developing prostate cancer in healthy men. A total of 34,887 men from different study sites in the United States, Canada, and Puerto Rico were randomly selected. To be eligible to participate, the men had to take a rectal examination that showed he was not suspicious of having prostate cancer and be aged 50 years or older for black men and 55 years or older for all others. Each man was randomly assigned to receive one of four treatments: selenium, vitamin E, selenium and vitamin E together, or a placebo. The men were followed up after 8 years to see if they had developed prostate cancer or not. The main question of interest is to determine if the risk of developing prostate cancer differs by the treatment taken. The data are summarized in the table below: No Prostate Cancer Prostate Cancer Total Selenium 8,752 8,737 8,702…
Which research design studies only people who are initially free of the disease of interest? Explain how this study design is different from the rest of the research designs a. Case control b. Cohort c. Cross sectional d. Experimental

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