Consider the data set shown below. Find the standard deviation of the least squares regression line.
y 0 3 2 3 8 10 11
x -2 0 2 4 6 8 10
3) A) 1.49045 B) 1.5 C) 0.9003 D) 0.94643
Consider the data set shown below. Find the standard deviation of the least squares regression line....
Consider the data set shown
below. Find the estimate of the slope of the least squares
regression line.
| 0 | 3 | 2 | 3 s |10|11 |--|| 2 | 68110
For the data set below (a) Determine the least-squares regression line. (b) Graph the least-squares regression line on the scatter diagram. x 4 5 6 7 9 y 710 8 14 17 (a) Determine the least-squares regression line. (Round to four decimal places as needed.)
For the data set below, (a) Determine the least-squares regression line. (b) Graph the least-squares regression line on the scatter diagram. 6 7 y 7 10 8 14 17 (a) Determine the least-squares regression line. (Round to four decimal places as needed.)
Consider the data set shown below. Find the 95% confidence interval for the slope of the regression line. y 0 3 2 3 8 10 11 x -2 0 2 4 6 8 10 9) A) 0.94643 ± 0.27603 B) 0.94643 ± 0.33306 C) 0.94643 ± 0.28377 D) 0.94643 ± 0.36203
For the data set below, (a) Determine the least-squares regression line. (b) Compute the sum of the squared residuals for the least-squares regression line. x 10 20 30 40 50 y 150 131 135 120 119 (a) Determine the least-squares regression line. ModifyingAbove y with caretyequals=nothingxplus+nothing (Round to four decimal places as needed.)
For the data set below (a) Determine the least-squares regression line. (b) Compute the sum of the squared residuals for the least-squares regression line. x 30 40 50 60 70 y 80 73 64 48 43 (a) Determine the least-squares regression line. ỳ-Ux + ] (Round to four decimal places as needed.) (b) The sum of the squared residuals is (Round to two decimal places as needed.)
[Q#2] (8pts) For the following data set, compute the equation of the least squares regression line and correlation coefficient. 20 8 8 13 6 15 7 25 6 27 5 y 4
For the data set below (a) Determine the least-squares regression line. (b) Compute th x30405060 70 y 113 100 87 85 67 (a) Determine the least-squares regression line (Round to four decimal places as needed)
3. A regression analysis of a data set yielded the Least Squares regression line: y = 15.8 − 0.7 x. (a) What would be the estimated mean of Y when X = 9? (b) A student said: “ If we plug x = 10 in the equation of the regression line, then we get an estimate for the value of Y.” What is wrong with this statement? (c) By how much, and in what direction, would you expect Y to...
Find the least squares regression line for the data points. (Let x be the independent variable and y be the dependent variable.) Graph the points and the line on the same set of axes 3 -3 3 -3
Find the least squares regression line for the data points. (Let x be the independent variable and y be the dependent variable.) Graph the points and the line on the same set of axes 3 -3 3 -3