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 11 14 7 4 11 7 50 8 12 6.46 12.76 10 7.21 7.71 9.17 6.22 5.44 8.19 6.66 5.47 y 7.22 Create a scatterplot of the data. Choose the correct graph below. OA. 25 20 15 10 5 0 5 10 15 20 25 DRO B. 25- 20 15- 10 53 0- 0 5 10 15 20 25 Find the equation of the regression line. ŷ=0+0x (Round the y-intercept two decimal places as needed. Round the slope to three decimal places as needed.) Identify a characteristic of the data that is ignored by the regression line. OA. There is an influential point that strongly affects the graph of the regression line. OB. There is no characteristic of the data that is ignored by the regression line. OC. The data has a pattern that is not a straight line. OD. There is no trend in the data. O C. 25 20- 15 10 8000 59 0 5 10 15 20 25 Q O D. 25 20- 15-1 10 5- 8000 0 5 10 15 20 25
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 11 14 7 4 11 7 50 8 12 6.46 12.76 10 7.21 7.71 9.17 6.22 5.44 8.19 6.66 5.47 y 7.22 Create a scatterplot of the data. Choose the correct graph below. OA. 25 20 15 10 5 0 5 10 15 20 25 DRO B. 25- 20 15- 10 53 0- 0 5 10 15 20 25 Find the equation of the regression line. ŷ=0+0x (Round the y-intercept two decimal places as needed. Round the slope to three decimal places as needed.) Identify a characteristic of the data that is ignored by the regression line. OA. There is an influential point that strongly affects the graph of the regression line. OB. There is no characteristic of the data that is ignored by the regression line. OC. The data has a pattern that is not a straight line. OD. There is no trend in the data. O C. 25 20- 15 10 8000 59 0 5 10 15 20 25 Q O D. 25 20- 15-1 10 5- 8000 0 5 10 15 20 25
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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Media periodically discuss the issue of heights of winning presidential candidates and heights of their main opponents. The accompanying table lists the heights (cm) from several recent presidential elections. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the P-value of r. Determine whether there is sufficient evidence to support a claim of linear correlation between the two variables. Should we expect that there would be a correlation? Use a significance level of .
Expert Solution
Step 1: Description of regression and correlation:
By the given data,we have by using R-software, we get,
The equation of Regression line is
Ŷ = 2.80 + 0.522 X
Correlation coefficieant r = 0.7723
Scatter plot as:
Hence, correct scatter plot is option ● A.
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