By the method of least square we can fit a regression line forming normal equations.
To find the best predicted value , we put the given value of predictor in fitted line.
Question 7 Solve the problem. Consider the data set shown below. Find the estimate of the...
The answer key says 12.75, but Im not sure why? I believe it
is y = 3(4.3) which is 12.9. Unless the key is wrong? Thank
you.
29) Use the given data to find the best predicted value of the response variable. 29) Four pairs of data yield r = 0.942 and the regression equation y = 3x. Also, y = 12.75. What is the best predicted value of y for x = 4.3?
in an area of the midwest, records were kept on teh relationship between the rainfall (in inches) adn the yeild of wheat (bushels per acre). Which is the best predicted value for y given x=7.3? Assume that the variables x and y have a significant correlation. rainfall in inches x = 10.5,8.8,13.4,12.5,18.8,10.3,7.0,15.6,16.0. Yield bushels per acre y = 50.5,46.2,58.8,59.0,82.4,49.2,31.9,76.0,78.8.
Use the given data to find the best predicted value of the response variable. Eight pairs of data yield r = 0.708 and the regression equation y = 55.8 + 2.79x. Also y = 71.125. What is the best predicted value of y for x = 5.7?
Question 11 (8 points) Find the best predicted value of y corresponding to the given value of x. A Eight pairs of data yield r=0.708 and the regression equation y = 55.8 + 2.79%. Also, y = 71.125. What is the best predicted value of y for x = 9.1? 1) 510.57 2) 57.80 3) 71.13 4) 81.19
Four pairs of data yield r=0.942 and the regression equation y=3x.Also, . What is the best predicted value ofyfor x=3.7
5) If a couple plans to have eleven children, how many gender sequences are possuble A) 11 C) 2048 B) 121 D) 2.853116706e 11 6) Given the equation of a regression line is y -1.04x 50.3, determine whether there is a positive 6 inear correlation or a negative linear correlation. A) positive linear correlation B negative linear correlation 7) In an area of the Midwest, records were kept on the relationship between the rainfall (in inches) and the yield of...
Show work please, Thanks!
Question 3: The regression line equation for a set of data is given by y-hat = 2.3x+5 with n = 10. The mean value of y is 10.1 for the data set. Use a = 0.05. A. If the linear correlation coefficient is r=0.521, what is the best predicted y-value for x = 5? Justify for your answer. B. If the linear correlation coefficient is r = 0.972, what is the best predicted y-value for x...
Six pairs of data yield r = 0.444 and the regression equation y hat = 5x + 2. Also, y bar = 18.3. What is the best predicted value of y for x = 5?
= You run a regression analysis on a bivariate set of data (n 90). With t = 32.8 and y 56.2, you obtain the regression equation y = 3.482x + 43.485 with a correlation coefficient of r = 0.089. You want to predict what value (on average) for the response variable will be obtained from a value of 100 as the explanatory variable. You find that the regression equation p value is above your a value. What is the appropriate...