Solution Found!
Another swim 2013 In Exercise 40, we saw that Vicki
Chapter 8, Problem 42E(choose chapter or problem)
Another swim 2013 In Exercise 40, we saw that Vicki Keith’s round-trip swim of Lake Ontario was an obvious outlier among the other one-way times. Here is the new regression after this unusual point is removed:
a) In this new model, the value of \(s_e\) is smaller. Explain what that means in this context.
b) Now would you be willing to say that the Lake Ontario swimmers are getting faster (or slower)?
Questions & Answers
QUESTION:
Another swim 2013 In Exercise 40, we saw that Vicki Keith’s round-trip swim of Lake Ontario was an obvious outlier among the other one-way times. Here is the new regression after this unusual point is removed:
a) In this new model, the value of \(s_e\) is smaller. Explain what that means in this context.
b) Now would you be willing to say that the Lake Ontario swimmers are getting faster (or slower)?
ANSWER:Problem 42E
Another swim 2013. In Exercise 40, we saw that Vicki Keith’s round-trip swim of Lake Ontario was an obvious outlier among the other one-way times. Here is the new regression after this unusual point is removed:
a) In this new model, the value of se is smaller. Explain what that means in this context.
b) Now would you be willing to say that the Lake Ontario swimmers are getting faster (or slower)?
Step by Step Solution
Step 1 of 3
Given: The regression results for predicting Time from Year are provided as:
Dependent variable is Time | |
R-squared=6.0%, s=326.1 | |
Variable |
Coefficient |
Intercept |
-13123.2 |
Year since 1970 |
7.21677 |
Table (1)