The amount of time a student devotes to class attendance and revision: and the grade obtained are assumed to be linearly related. In a small class of 15 students, the following results were obtained for this linear relationship. Y = 30 +2.5

Q: A regression was run to determine if there is a relationship between hours of TV watched per day (x)…

A: Given relationship is y= -1.261x + 28.694 Here x is hours of TV watched per day and y is number of…

Q: Use this to predict the number of situps a person who watches 8 hours of TV can do (to one decimal…

A:

Q: A regression was run to determine if there is a relationship between hours of TV watched per day (x)…

A: Given,Regression equation isy=a+bx wherea=30.268b=-1.273Therefore regression equation…

Q: A regression was run to determine if there is a relationship between hours of TV watched per day (x)…

A: Given: a=-1.025b=31.237r2=0.414736r=-0.644

Q: to Consider the scatterplot given above. Which of the following could be the value of r? O A. 0.998…

A: Scatterplot is a graphical representation between two variables, where each of the points of the…

Q: A regression was run to determine whether there is a relationship between the diameter of a tree (x,…

A:

Q: Use this to predict the number of situps a person who watches 9 hours of TV can do

A: It is given that  y = ax + b where, a = -0.682 b = 21.214 r2 = 0.822649r = -0.907

Q: A regression was run to determine if there is a relationship between hours of TV watched per day (x)…

A: A regression was done to assess if TV viewing hours (x) and situps (y) are related. The regression…

Q: A regression was run to determine if there is a relationship between hours of TV watched per day (x)…

A: Given data isa=-1.002b=31.579r2=0.923521r=-0.961from given data regression equation…

Q: A regression was run to determine if there is a relationship between hours of TV watched per day (x)…

A: Given ,a=23.237b=-1.168r=-0.613Regression equation is y=a+bx

Q: there is a relationship between hours of TV watched per day (x) and number of situps a person can do…

A: The results of the regression were:ŷ=ax+b a=-0.778 b=23.145 r2=0.707281 r=-0.841

Q: A regression was run to determine if there is a relationship between hours of TV watched per day (x)…

A: Given info: A regression was run to determine if there is a relationship between hours of TV watched…

Q: A regression was run to determine if there is a relationship between hours of TV watched per day (x)…

A: Solution: It is given here:

Q: A regression was run to determine if there is a relationship between hours of TV watched per day (x)…

A: Solution: Let X be the number of hours of TV watched per day and Y be the number of sit-ups a person…

Q: Use the computer output to estimate the intercept, and the slope ₁. The regression equation is Y =…

A: Given Regression equation 833-4.16X

Q: What is the relationship between the number of minutes per day a woman spends talking on the phone…

A: Solution

Q: A regression was run to determine if there is a relationship between hours of TV watched per day (x)…

A: Given,a=-1.309b=28.368r2=0.4096r=-0.64y=ax+b

Q: A regression was run to determine if there is a relationship between hours of TV watched per day (x)…

A:

Q: A diligent statistics student recorded the length of hisfaithful #2 pencil as he worked away on his…

A:

Q: Use the computer output to estimate the intercept Bo and the slope ß- The regression equation is Y =…

A: The population regression equation can be written as Y = β0 + β1X, where X is the independent…

Q: A regression was run to determine if there is a relationship between hours of TV watched per day (x)…

A: It is given that, Slope, a =-0.849 Intercept,b =32.064 Thus, the regression line is : y…

Q: Using the weights (Ib) and highway fuel consumption amounts (mi/gal) of the 48 cars listed in the…

A: b. The specific values of the slope and y-intercept of the regression line is: C. The slope is…

Q: o estimate ages of trees, rangers use a simple regression model that relates the tree diameter…

A: Let the dependent variable y is treeage Let the independent variable x is, diameter. The regression…

Q: A regression analysis was performed to determine if there is a relationship between hours of TV…

A: It is given that the value of a is –1.152 and b is 30.418.

Q: The growth of children from early childhood through adolescence generally follows a linear pattern.…

A: Suppose data on heights of children from four to nine years old were compiled and the regression…

Q: A regression was run to determine if there is a relationship between hours of TV watched per day (x)…

A: The regression equation is: y=-0.649x+20.136.

Q: A regression was run to determine if there is a relationship between hours of TV watched per day (x)…

A: Given,   The regression equation is,   .   The objective is to predict the number of situps a person…

Q: A regression was run to determine if there is a relationship between hours of TV watched per day (x)…

A: The regression equation is y = 28.724 – 1.299x, where x is the hours of TV watched per day and y is…

Q: A regression was run to determine if there is a relationship between hours of TV watched per day (x)…

A:

Q: The figure shown to the right contains a scatter plot of 10 data points for trees, where the…

A: Given, The Regression model is shown below, where x is the Dbh in inches and y is the height in…

Q: A regression was run to determine if there is a relationship between hours of TV watched per day (x)…

A: Given regression equation is. y=-0.926x + 22.103 If x=7.5 y=?

Q: A regression was run to determine if there is a relationship between hours of TV watched per day (x)…

A: We have given a regression equation and we have to predict the value of y for x=11.5

Q: A regression was run to determine if there is a relationship between hours of TV watched per day (x)…

A: Given,y=ax+ba=-1.307b=32.392r=-0.822

Q: If it is known that the association between the variables is linear with r = 0.95, sx = 7.8, sy =…

A: We have given that  r = 0.95, sx = 7.8, sy = 9.8 Formula used  b= r.sx/sy