Question 1

The following data values are for 10 popular types of cereal.
​  ​ 
a.Determine the least squares regression line,if Calories is the y variable.
b.Find the predicted value of Calories for Sugar = 9.
c.What does the value of the slope of the regression line tell you?
​

Accepted Answer

The answer of The following data values are for 10...

Question 2

Oil Quality and Price 
Quality of oil is measured in API gravity degrees--the higher the degrees API,the higher the quality.The table shown below is produced by an expert in the field who believes that there is a relationship between quality and price per barrel.  A partial Minitab output follows: Descriptive Statistics Variable N Mean StDev SE Mean Degrees 13 34.60 4.613 1.280 Price 13 12.730 0.457 0.127 Covariances Degrees Price Degrees 21.281667 Price 2.026750 0.208833 Regression Analysis Predictor Coef StDev T P Constant 9.4349 0.2867 32.91 0.000 Degrees 0.095235 0.008220 11.59 0.000 S = 0.1314 R−Sq = 92.46% R−Sq(adj)= 91.7% Analysis of Variance Source DF SS MS F P Regression 1 2.3162 2.3162 134.24 0.000 Residual Error 11 0.1898 0.0173 Total 12 2.5060
-{Oil Quality and Price Narrative} Use the residuals to compute the standardized residuals.

Accepted Answer

The answer of Oil Quality and Price 
Quality of oil...

Question 3

The following data values are for 10 popular types of cereal.
​  ​ 
a.Determine the least squares regression line,if Calories is the y variable.
b.Find the predicted value of Calories for Sugar = 9.
c.What does the value of the slope of the regression line tell you?
​

Accepted Answer

The answer of The following data values are for 10...

Question 4

Oil Quality and Price 
Quality of oil is measured in API gravity degrees--the higher the degrees API,the higher the quality.The table shown below is produced by an expert in the field who believes that there is a relationship between quality and price per barrel.  A partial Minitab output follows: Descriptive Statistics Variable N Mean StDev SE Mean Degrees 13 34.60 4.613 1.280 Price 13 12.730 0.457 0.127 Covariances Degrees Price Degrees 21.281667 Price 2.026750 0.208833 Regression Analysis Predictor Coef StDev T P Constant 9.4349 0.2867 32.91 0.000 Degrees 0.095235 0.008220 11.59 0.000 S = 0.1314 R−Sq = 92.46% R−Sq(adj)= 91.7% Analysis of Variance Source DF SS MS F P Regression 1 2.3162 2.3162 134.24 0.000 Residual Error 11 0.1898 0.0173 Total 12 2.5060
-{Oil Quality and Price Narrative} Identify possible outliers.

Accepted Answer

The answer of Oil Quality and Price 
Quality of oil...

Quiz 16: Simple Linear Regression and Correlation

The following data values are for 10 popular types of cereal. a.Determine the least squares regression line,if Calories is the y variable. b.Find the predicted value of Calories for Sugar = 9. c.What does the value of the slope of the regression line tell you?

The following data values are for 10 popular types of cereal. a.Determine the least squares regression line,if Calories is the y variable. b.Find the predicted value of Calories for Sugar = 9. c.What does the value of the slope of the regression line tell you?

Quiz 16: Simple Linear Regression and Correlation

The following data values are for 10 popular types of cereal. ​ ​ a.Determine the least squares regression line,if Calories is the y variable. b.Find the predicted value of Calories for Sugar = 9. c.What does the value of the slope of the regression line tell you? ​

The following data values are for 10 popular types of cereal. ​ ​ a.Determine the least squares regression line,if Calories is the y variable. b.Find the predicted value of Calories for Sugar = 9. c.What does the value of the slope of the regression line tell you? ​

The following data values are for 10 popular types of cereal. a.Determine the least squares regression line,if Calories is the y variable. b.Find the predicted value of Calories for Sugar = 9. c.What does the value of the slope of the regression line tell you?

The following data values are for 10 popular types of cereal. a.Determine the least squares regression line,if Calories is the y variable. b.Find the predicted value of Calories for Sugar = 9. c.What does the value of the slope of the regression line tell you?