Health insurers are beginning to offer telemedicine services online that replace the common office visit. Wellpoint provides a video service that allows subscribers to connect with a physician online and receive prescribed treatmentsWellpoint 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 20 online doctor visits, are consistent with the savings per visit reported byWellpoint.9210554759279523583494672908039389674100Assuming the population is roughly symmetric, construct a 95% confidence interval for the mean savings for a televisit to the doctor as opposed to an office visit (to 2 decimals)95% confidence interval: $to $per visit

Here, the sample size is 20 that is reasonably small. The population standard deviation is unknown…

Answered: Health insurers are beginning to offer…

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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An article gave the following data on median worker pay (in thousands of dollars) and the 1-year percent change in stock price for the 13 highest paying companies in the United States. Percent Change in Stock Price Median Company Worker Pay Company 1 134.7 21.9 Company 2 132.2 92.4 Company 3 125.0 33.8 Company 4 122.8 52.3 Company 5 122.5 42.1 Company 6 121.2 2.6 Company 7 121.2 5.3 Company 8 119.0 29.9 Company 9 118.0 7.9 Company 10 118.0 37.2 Company 11 117.6 15.8 Company 12 117.4 21.9 Company 13 115.1 -44.5
Use this data and build a model of overall satisfaction. If a customer reports satisfaction ratings as follows, what is their overall satisfaction rating likely to be? (Keep one decimal place) Comfort = 84.5 Amenities = 86.7 In-House Dining = 78.9 Hotel Overall Comfort Amenities In-House Dining Cabo de Gata Vista 86.0 85.0 72.2 89.2 Cap d’Agde Resort 89.8 89.8 92.5 88.8 Club Lapu-Lapu 87.1 87.0 74.9 89.6 Hacienda Punta Barco 86.1 85.8 77.3 90.8 Hotel Iguana 89.1 91.2 81.9 88.5 Mokihana Hōkele 90.2 90.5 82.0 98.7 Muri Beach Odyssey 94.3 95.5 90.8 97.7 Pattaya Resort 92.9 96.8 84.1 96.6 Penang Resort and Spa 90.4 91.4 87.8 91.1 Rendezvous Kolocep 86.0 85.5 76.4 91.4 Rotorua Inn 87.1 89.0 91.6 73.5 Sainte-Maxime Quarters 88.6 89.1 78.2 91.2 Sanya Deluxe 85.1 84.0 77.3 91.8 Sidi Abdel Rahman Palace 89.0 90.1 93.0 89.6 Sojourner’s Respite 92.8 90.3 100.0 88.4 Spa Carribe 91.2 93.0 94.7 97.0 Spirit of Mykonos 89.3 91.4 85.8 90.7 Terracina Retreat…
Steve Taylor is the owner of Home Plus, which is a chain of home improvement stores. He would like to investigate the relationship between month advertising and monthly sales. The table below shows the amount spent on advertising, in millions of dollars, over several months along with the corresponding sales, also in millions of dollars. Month Advertising($ millions) Sales($ millions) 1 3 11 2 3 13 3 4 12 4 5 21 5 1 7 Use the Home Plus data to calculate: The standard error of the estimate. The 95% confidence interval for the average sales for a month where $4 million was spent on advertising.
Construct a graph that best demonstrates the underlying trend of the following data about eagles in the US. What are the two locations that show the lowest proportion of Avian Pox? Location Total Eagles Eagles with Avian Pox Northeast 121 8 Southeast 283 12 North Central 541 28 South Central 501 36 Northwest 343 24 Southwest 112 20 Alaska 503 8 Construct a very simple bar graph that best demonstrates the number of injuries that occurred for each sport. Sport Injuries Baseball 165,842 Basketball 501,251 Bowling 20,878 Football 451,961 Ice Hockey 19,035 Soccer 208,214 Softball 121,175 Tennis 23,611 Volleyball 60,159
The owner of Showtime Movie Theaters, Inc., would like to predict weekly gross revenue as a function of advertising expenditures. Historical data for a sample of eight weeks follow. Click on the datafile logo to reference the data .
The following table gives the2009 estimates of crude oil reserves(in billionsof barrels).. Please answer step by step.Don,t skip any part. ANswer follow image.Answer must be correct.Do all calculation and classify
5.Identify the following as being discrete or continuous data. Explain.a. The average number of pets was 1.823b. The puppy weighed 2 pounds
Dixie Showtime Movie Theaters, Inc., owns and operates a chain of cinemas in several markets in the southern U.S. The owners would like to estimate weekly gross revenue as a function of advertising expenditures. Data for a sample of eight markets for a recent week follow. Market Mobile Shreveport Jackson Birmingham Little Rock Biloxi New Orleans Baton Rouge Weekly Gross Revenue Television Advertising Newspaper Advertising ($100s) 101.3 51.9 74.8 126.2 137.8 101.4 237.8 219.6 ($100s) 5.0 3.0 4.0 4.3 3.6 3.5 5.0 6.9 + (a) Use the data to develop an estimated regression equation with the amount of television advertising as the independent variable. Let x represent the amount of television advertising. If required, round your answers to three decimal places. For subtractive or negative numbers use a minus sign even if there is a + sign before the blank. (Example: -300) ŷ ($100s) 1.5 3.0 1.5 4.3 4.0 2.3 8.4 5.8 X Test for a significant relationship between television advertising and weekly…
Only data that shows positive trends can be graphed in a scatter diagram. True O False
Please answers questions a through d. Thank you!
please answer blank questions only and or ones with a red x next to them.
Interpret scatter diagram and descriptive statistics.

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