### Understanding the Coefficient of DeterminationGiven:\[ r = -0.579 \]**Task: Calculate the Coefficient of Determination**- Calculate the coefficient of determination. - (Round to three decimal places as needed.)**Explained Variation:**- What does this tell you about the explained variation of the data about the regression line?\[ \_\_\_\_ \%\] of the variation can be explained by the regression line. - (Round to one decimal place as needed.)**Unexplained Variation:**- About the unexplained variation?\[ \_\_\_\_ \%\] of the variation is unexplained and is due to other factors or to sampling error. - (Round to one decimal place as needed.)

r = -0.579we have to find and interprerte value of coefficient of determination.

Answered: r = -0.579 Calculate 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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Which one of the following numbers for the standard error of estimate would indicate the best regression fit? 100 50 1000 10
Use the value of the linear correlation coefficient to calculate the coefficient of determination. What does this tell you about the explained variation of the data about the regression line? About the unexplained variation? r = -0.338 Calculate the coefficient of determination. (Round to three decimal places as needed.) % of the variation can be explained by the regression line (Round to one decimal place as needed.) % of the variation is unexplained and is due to other factors or to sampling error. (Round to one decimal place as needed.)
Use the value of the linear correlation coefficient to calculate the coefficient of determination. What does this tell you about the explained variation of the data about the regression line? About the unexplained variation? r= - 0.884 Calculate the coefficient of determination. (Round to three decimal places as needed.)
Use the regression line to estimate the number of trials it would take to learn these tricks if a dolphin received five treats per trick. Y for X = 5 would be _________.
Use the value of the linear correlation coefficient to calculate the coefficient of determination. What does this tell you about the explained variation of the data about the regression line? About the unexplained variation?
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Use the value of the linear correlation coefficient to calculate the coefficient of determination. What does this tell you about the explained variation of the data about the regression line? About the unexplained variation? r= -0.438 please dont copy paste the content from other sites
2. Participants were kept awake for a certain number of hours before given a visuospatial task. Researchers measured how many correct responses each participant had. Results are shown below. Use alpha = .01. Number of Correct Hours Kept Awake (X) Responses (Y) 21 X = 10 SS, = 422 Y = 10 SS, = 690 2 4 19 %3D 6. 13 SPxy =-525 ху 5 20 S, =5.70 S, = 7.29 9. 11 10 9. 14 5 15 5 17 2 18 1 17 1 13 4 18 8 11 A. Graph the data. B. State the hypotheses. C. Make a decision about the null. a. Calculate Pearson's r i. Decision about null hypothesis? b. Calculate effect size i. Interpret effect size. D. State your conclusion. E. Relate your conclusion to the research. F. Calculate the regression formula. G. If someone was kept awake for 9 hours, what is the predicted number of correct responses?
Use technology to find (a) the multiple regression equation for the data shown in the accompanying table, (b) the standard error estimate and interpret the result, and (c) the coefficient of determination and interpret the result. The accompanying table shows the total square footages (in billions) of retailing space at shopping centers, the numbers (in thousands) of shopping centers, and the sales (in billions of dollars) for shopping centers for eight years. Click the icon to view the data table on shopping center sales. Shopping center sales (a) What is the regression equation? this cycl 123.8 211.8385.4 475.6 641.9 716.4 |768.4|806.1851.8 893.8 933.6 D 4.7 (Round to two decimal places as needed.) Sales, y Total square footage, x1 12/24/1 5.1 5.0 4.9 4.8 4.6 4.0 3.5 3.2 2.8 1.9 (b) The standard error is. 38.0 38.9 39.7 40.6 41.3 42.1 17.9 22.4 25.4 32.7 Shopping centers, X2 13.4 (Round to two decimal places as needed.) Interpret the standard error. Choose the cd tion Done Print O A.…

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