Question 6Interpret the coefficient of correlation using the table below?SUMMARY OUTPUTRegression StatisticsMultiple RR SquareAdjusted R Square0.98180.96390.9552Standard Error3.7981Observations6CoefficientsInterceptX Variable 1O 98.18% of the change in the y variable is explained by our x variable13.11740.5688the correlation is strong and positive in direction96.39% of the change in the y variable is explained by this x variablethe correlation is strong and negative

There is one independent and one dependent variable. This is simple linear regression model. We have…

Answered: Interpret the coefficient of…

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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LEGE 31-1 Listed below are paired data consisting of movie budget amounts and the amounts that the movies grossed. Find the regression equation, letting the budget be the predictor (x) variable. Find the best predicted amount that a movie will gross if its budget is $115 million. Use a significance level of a = 0.05. Budget ($)in Millions Gross ($) in Millions Click the icon to view the critical values of the Pearson correlation coefficient r 65 123 22 8 151 11D 38 25 115 69 70 49 125 67 10 111 206 41 25 285 43 118 18 100 60 128 121 109 107 65 The regression equation is y =+x. (Round to one decimal place as needed.) ter/ Enter your answer in the edit fields and then click Check Answer. Check Answer Clear Al 1 part remaining
Measles and Mumps The data show the number of cases of measles and mumps for a recent -year period. + Measles Cases 48 145 64 57 217 Mumps Cases S07 432 1957 2553 379 Send data to Excel The correlation coefficient for the data is 7=-0.688 and a = 0.05. Should regression analysis be done? The regression analysis should not be done. O The regression analysis should be done. Find the equation of the regression line. Round the coefficients to at least three decimal places. y =a= bx a = Given a year with 171 cases of measles, predict the expected number of cases of mumps for that year. Round your answer to at least one decimal place. The number of cases of mumps for that year is
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Which description best describes the value of r = -.56? the strength of the relationship between the explanatory and the response variable 56% chance of the regression line being a good fit a moderate, negative linear relationship a strong, positive linear relationship a weak linear relationship
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When there are omitted variables in your regression, then... Group of answer choices This has no effect on the estimation of the explanatory variable because the variable is omitted This will always bias the OLS estimation of the explanatory variable the estimation of the explanatory variable(s) is unaffected The OLS estimation is biased if the omitted variables are correlated with the included variable
M Wed Feb 15 Measles and Mumps The data show the number of cases of measles and mumps for a recent 5-year period. Measles Cases Mumps Cases 48 150 1797 475 70 60 203 1954 2575 370 Send data to Excel www-awu.connectmath.com The correlation coefficient for the data is r=-0.911 and a= 0.05. Should regression analysis be done? O The regression analysis should not be done. O The regression analysis should be done. Find the equation of the regression line. Round the coefficients to at least three decimal places. y' = a + bx a = b = Given a year with 185 cases of measles, predict the expected number of cases of mumps for that year. Round your answer to at least one decimal place. The number of cases of mumps for that year is 47% Submit Assignment 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Cent 0
x = number of traffic tickets y = Cost of auto insurance In a test of linear correlation produces a P-value of 0.578. At the 5% level of significance will the correlation be useful in using x to predict y? Group of answer choices Yes Not enough information No It depends None of these
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Tall Buildings The stories and heights (in feet) of a sample of 10 buildings in Pittsburgh are shown. Stories.x 64 54 40 31 45 44 42 41 39 40 Height y 741 625 535 516 515 482 435 420 411 385 Send data to Excel The correlation coefficient for the data is r= 0.788 and a= 0.05. Should regression analysis be done? O The regression analysis should not be done. O The regression analysis should be done. Find the equation of the regression line. Round the coefficients to at least three decimal places. y'=a+bx a = b = Find y' when x = 36. Round your answer to at least three decimal places. y'
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Jerome has kept track of the hours he spent studying and his marks on examination. His marks are lised below. Hours Mark Subject Math Gr 9 English Gr 9 Science Gr 9 Math Gr 10 English Gr 10 Sci Gr 10 Studied 5 70 3 65 2 38 7 74 69 71 Math Gr 11 12 76 English Gr 11 9 74 Physics Gr 11 14 78

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