Collapse4QUESTION 3A researcher found that there are relationships between nursing home satisfaction and the age of the patient and his or her physical health.Nursing home satisfaction is measured on a scale of 1 to 10, with 10 being the highest satisfaction. Physical health is measured on a scaleof 1 to 10 and is based on the patient's own evaluation of his or her physical health. The multiple regression equation isy = 0.189 + 0.0637x1 + 0.28x2, where x1 is the patient's age and xɔ is the person's physical health. Predict a person's satisfaction if her ageis 78 and her physical health is 8.O 7.4O 7.2O 7.0О-2.5QUESTION 4Year and contribution data are as follows:Years xContribution yMacBook AirDIIDD80F10escF5F6F7F8F9F2F3F4F1*@#3$&348WETY

The multiple regression equation is y’ = 0.189 + 0.0637x1 + 0.28x2, where x1 is the patient’s age…

Answered: A researcher found that there are…

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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A researcher is investigating possible explanations for deaths in traffic accidents. He examined data from 2000 for each of the 52 cities randomly selected in the US. The variables were death and income. Deaths: The number of deaths in traffic accidents per cityIncome: The median income per city The researcher ran a simple linear regression model: Deaths = Bo+B1(Income). Results shown in photo below. Question: Please help me better understand how to use results from photo to find value of R-squared of this simple linear regression model.
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When using population size as the explanatory variable, x, and broadband subscribers as the response variable, y, for data on the number of individuals in a country with broadband access and the population size for 36 nations, the regression equation is y = 4,975,098 +0.0342x. a. Interpret the slope of the regression equation. Is the association positive or negative? Explain what this means. b. Predict broadband subscribers at the (i) population size 7,014,655, (ii) population size 1,155,173,053. c. For one nation, y = 71,110,000, and x = 322,413,902. Find the predicted broadband use and the residual for this nation. Interpret the value of this residual. a. Since the association is positive, the slope means that as the (Type an integer or a decimal.) b. (i) The predicted broadband subscribers for population size 7,014,655 is (Round to the nearest whole number as needed.) population size increases by 1 unit, the number of broadband subscribers tends to increase by 0.0342.

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