Health insurers are beginning to offer telemedicine services online that replace the common office visit. A company provides a video service that allows subscribers toconnect with a physician online and receive prescribed treatments. The company claims that users of its online service saved a significant amount of money on atypical visit. The data shown below ($), for a sample of 20 online doctor visits, are consistent with the savings per visit reported by the company.988946999940Need Help?61 62 558246 11154 10280 79 84106 59 88Read Itquestion.Assuming the population is roughly symmetric; construct a 95% confidence interval for the mean savings in dollars for a televisit to the doctor as opposed to an officevisit. (Round your answers to the nearest cent.)$66.80X to $80.80X

The data indicates a sample of 20 online doctor…

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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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The price drivers pay for gasoline often varies a great deal across regions throughout the United States. The following data show the price per gallon for regular gasoline for a random sample of gasoline service stations for three major brands of gasoline (Shell, BP, and Marathon) located in eleven metropolitan areas across the upper Midwest region (OhioGasPrices.com website, March 18, 2012). Click on the datafile logo to reference the data. DATA file Shell BP Metropolitan Area Marathon Akron, Ohio Cincinnati, Ohio Cleveland, Ohio Columbus, Ohio Ft. Wayne, Indiana Indianapolis, Indiana Lansing, Michigan Lexington, Kentucky Louisville, Kentucky Muncie, Indiana Toledo, Ohio 3.77 3.72 3.87 3.76 3.78 3.87 3.89 3.79 3.83 3.83 3.85 3.77 3.83 3.85 3.93 3.84 3.84 4.04 3.87 3.87 3.99 3.79 3.78 3.81 3.69 3.78 3.84 3.84 3.83 3.79 3.79 3.86 3.86 Use a = .05 to test for any significant difference in the mean price of gasoline for the three brands. Round SS to 6 decimals, MS to 6 decimals, F to 2…
The following statistics represent weekly salaries at a construction company. Mean $620 First quartile $485 Median $540 Third quartile $600 Mode $535 94th percentile $683 The most common salary is $ The salary that half the employees' salaries surpass is $ The percent of employees' salaries that surpassed $600 is The percent of employees' salaries that were less than $485 is %. The percent of employees' salaries that surpassed $683 is %. If the company has 100 employees, the total weekly salary of all employees is $ %.
A real estate agency, located in a metropolitan area in the northeastern U.S., kept data on the various types of properties purchased in the area. Historically, 15% of purchases were for condominiums, 30% were for townhouses, 40% for single family homes, 10% for commercial properties and 5% for land. With changing demographics, the agency wondered if the current distribution matches the historical distribution. Recent data showed the following: Type of Property Condos Townhouses Homes Commercial Land Frequency 89 121 78 25 12 Based on the historical distribution, we would expect how many homes to be purchased? Question content area bottom Part 1 A. 130 B. 121 C. 129.95 D. 122.54 E. 100
You are interested in expanding your research to determine if type of Honda or the colour affectssales. The data below represents the annual sales in hundreds of thousands: Red Blue Green Yellow BlackSmall 54 49 96 51 76Medium 44 50 50 55 80Large 35 64 89 48 61 The study is replicated for Toyota motor vehicles and the results shown below: Red Blue Green Yellow BlackSmall 40 64 49 45 68Medium 45 55 45 50 84Large 50 49 64 64 26 Combine the data from the two ande. Prepare the analysis of variance table manually (Show ALL workings) f. State the null hypothesis(es), the decision rule for α = 0.05 and make the decision foreach hypothesis. g. Confirm your answer using R-Studio. Provide the code used and relevant output tables. h. Using R-Studio, carry out relevant tests to determine if the assumptions of…
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A psychologist believed that as children get older, they engage in more “inactive activities” such as playing computer games, watching TV and surfing the internet. She collected data from 10 children. She recorded the age of each child and the amount of activity (in hours) the child engaged in per week. Age Activity 7 4.3 9 3.2 10 1 13 1.5 12 1.2 15 0.8 9 3 12 4 15 1.5 14 1.9 Using excel, obtain a scatterplot of the data. Discuss the relationship between age and activity based on the scatterplot. Using excel, obtain the simple linear regression linear regression line predicting activity from age. Interpret the intercept and slope of the regression line. By hand, predict the amount of activity for age = 14. By hand, calculate the residual for age = 14 Using excel output, test the null hypothesis that the slope coefficient is zero using the p-value approach. Write one sentence interpreting the meaning of this result. Make sure to report the test statistic…
Health insurers are beginning to offer telemedicine services online that replace the common office visit. Kean healthcare provides a video service that allows subscribers to connect with a physician online and receive prescribed treatments. Kean healthcare claims that users of its LiveHealth Online service saved a significant amount of money on a typical visit. The data shown below ($), for a sample of 5 online doctor visits, are consistent with the savings per visit reported by Kean Healthcare. 92 105 56 76 96 Assuming the population is roughly symmetric construct a 90% confidence interval for the mean savings for a televisit to the doctor as opposed to an office visit.
Please answer part a-d. please show all your work
Match each numerical range to the description of the data that is most likely to represent.
In the digital age of marketing, special care must be taken to make sure that programmatic ads appearing on websites align with a company's strategy, culture and ethics. For example, in 2017, Nordstrom, Amazon and Whole Foods each faced boycotts form social media users when automated ads for these companies showed up on the Breitbart website (ChiefMarketer.com). It is important for marketing professionals to understand a company's values and culture. The following data are from an experiment designed to investigate the perception of corporate ethical values among individuals specializing in marketing (higher scores indicate higher ethical values). Marketing Managers Marketing Research Advertising 3 6 7 4 6 6 3 5 5 5 5 6 4 6 6 5 5 6 (a) Use α = 0.05 to test for significant differences in perception among the three groups. State the null and alternative hypotheses. H0: μMM = μMR = μAHa: μMM ≠ μMR ≠ μAH0: Not all the population means are equal.Ha: μMM = μMR = μA…

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