Use the given data to find the equation of the regression line. Examine the scatterplot and identify a characteristic of the data that is ignored by the regression line.X710y 7.358 11 86.84 13.22 7.0856.375.5Av25+20-15-10-Create a scatterplot of the data. Choose the correct graph below.O A.co do 80 o5-0-0 5 10 15 20 25Q108.14Q14 58.92 5.9145.63117.99O B.Av2520-1510-Q5-0-0 5 10 15 20 25QQCO C.25-201510-000 8050-0 5 10 15 20 25QO D.25-20-15510-550-→0 5 10 15 20 2588%10QQ

When we want to predict the value of one variable, say y, from the given value of another variable,…

Answered: Use the given data to find the equation…

Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)

6th Edition

ISBN:9781337111348

Author:Bruce Crauder, Benny Evans, Alan Noell

Publisher:Bruce Crauder, Benny Evans, Alan Noell

Chapter3: Straight Lines And Linear Functions

Section3.4: Linear Regression

Problem 10SBE

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Similar questions

Life Expectancy The following table shows the average life expectancy, in years, of a child born in the given year42 Life expectancy 2005 77.6 2007 78.1 2009 78.5 2011 78.7 2013 78.8 a. Find the equation of the regression line, and explain the meaning of its slope. b. Plot the data points and the regression line. c. Explain in practical terms the meaning of the slope of the regression line. d. Based on the trend of the regression line, what do you predict as the life expectancy of a child born in 2019? e. Based on the trend of the regression line, what do you predict as the life expectancy of a child born in 1580?2300
XYZ Corporation Stock Prices The following table shows the average stock price, in dollars, of XYZ Corporation in the given month. Month Stock price January 2011 43.71 February 2011 44.22 March 2011 44.44 April 2011 45.17 May 2011 45.97 a. Find the equation of the regression line. Round the regression coefficients to three decimal places. b. Plot the data points and the regression line. c. Explain in practical terms the meaning of the slope of the regression line. d. Based on the trend of the regression line, what do you predict the stock price to be in January 2012? January 2013?
What is interpolation when using a linear model?
Demand for Candy Bars In this problem you will determine a linear demand equation that describes the demand for candy bars in your class. Survey your classmates to determine what price they would be willing to pay for a candy bar. Your survey form might look like the sample to the left. a Make a table of the number of respondents who answered yes at each price level. b Make a scatter plot of your data. c Find and graph the regression line y=mp+b, which gives the number of respondents y who would buy a candy bar if the price were p cents. This is the demand equation. Why is the slope m negative? d What is the p-intercept of the demand equation? What does this intercept tell you about pricing candy bars? Would you buy a candy bar from the vending machine in the hallway if the price is as indicated. Price Yes or No 50 75 1.00 1.25 1.50 1.75 2.00
Explain how to interpret the absolute value of acorrelation coefficient.
Mortgage Rates The following table is taken from the website of Freddie Mac. It shows rates for 30-year fixed-rate mortgages since 1970. y=Year r=Mortgagerate 1975 9.05 1980 13.74 1985 12.43 1990 10.13 1995 7.93 2000 8.05 2005 5.87 2010 4.69 2015 3.84 a. Explain in practical terms the meaning of r(2003). b. Use the table to estimate the value of r(2003).
(10+05)The following data were collected on the height (inches) and weight (pounds) of women swimmers.Height6870646566 Weight132110106115128 c. Interpret the estimated regression equation.
Which of the following statements are true when performing a simple linear regression analysis between X and Y? Check ALL that are TRUE. The coefficient of determination may be a negative value Or 0 represents the absence of a linear rclationship betwcen X and Y Or= .96 has the same predictive power as r= -96 Or-1.0 represents a perfect lincar relationship
FAL The money raised and spent (both in millions of dollars) by all congressional campaigns for 8 recent 2-year periods are shown in the table. The equation of the regression line is y = 0.959x + 15.575. Find the coefficient of determination and interpret the result. Money raised, x Money spent, y 472.7 446.1 652.5 681.3 742.1 747.2 Find the coefficient of determination and interpret the result. 2 (Round to three decimal places as needed.) 785.7 779.4 1025.2 954.5 1207.4 1008.1 933.1 1165.1 769.1 725.3
A regression line calculated as y= 9.7-3.2x. The slope of this line is -3.2 TRUE OR FALSE
Use the given data to find the equation of the regression line. Examine the scatterplot and identify a characteristic of the data that is ignored by the regression line. X 10 8 12 10 11 14 4 13 8 y 7.16 6.82 13.36 7.24 7.96 9.2 6.09 5.15 8.02 6.32 5.76 Create a scatterplot of the data. Choose the correct graph below. A. B. OC. O D. Ay 25 Ay 25 Ay 25 Ay 25 20- 20- 20 20- 15 153 15 10- 105 10 10- 5- 53 05 10 15 20 25 0 5 10 15 20 25 0 5 10 15 20 25 0 5 10 15 20 25 Find the equation of the regression line. %3D (Round the y-intercept two decimal places as needed. Round the slope to three decimal places as needed.) Activate Wnd Help me solve this View an example Get more help - P Type here to search hp esc 12 f4 f5 f6 f8 f12 IOI insert prt sc del %23 & 2. 3. 4 5. backspace E Y 5. 00 %24
Use the regression equation to predict the value of y for x = - X y -5 - 3 4 11 6 - 6 A. 7.921 B. - 0.995 C. -4.765 O D. -6.405 1 - 1 - 1 3 - 2 0 4 1 2 - 4 3 -5 -3.8. Assume that the variables x and y have a significant correlation. - 4 8

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