Question: You are given the following sample data:
x y
10 3
6 7
9 3
3 8
2 9
8 5
3 7
a. Develop a scatter plot for these data.
b. Determine the regression equation for the data.
c. Develop a 95% confidence interval estimate for the true regression slope and interpret this interval estimate.
d. Provide a 95% prediction interval estimate for a particular y, given xp = 7. Problems I and II refer to the following output for a simple linear regression model:
Problems I: Referring to the displayed regression model, what percent of variation in the y variable is explained by the x variable in the model?
Problems II: Construct and interpret a 90% confidence interval estimate for the regression slope coefficient.