How does a confidence interval differ from a prediction interval? ...

[kamilo84]

How does a confidence interval differ from a prediction interval?
 
  A) Confidence intervals are used to measure the accuracy of the mean response of all the individuals in the
  population, while a prediction interval is used to measure the accuracy of a single individuals predicted
  value.
  B) Confidence intervals are used to measure the accuracy of a single individuals predicted value, while a
  prediction interval is used to measure the accuracy of the mean response of all the individuals in the
  population.
  C) Confidence intervals are constructed about the predicted values of y while prediction intervals a
  constructed about a particular value of x
  D) Confidence intervals are constructed about the predicted values of x while prediction intervals a
  constructed about a particular value of y

Question 2

One of the requirements for conducting inference on the least-squares regression model is that the
 
  A) mean of the response variable changes at a constant rate while the standard deviation remains constant.
  B) mean of the explanatory variable changes at a constant rate while the standard deviation remains
  constant.
  C) mean of the response variable remains constant while the standard deviation changes at a constant rate.
  D) mean of the explanatory variable remains constant while the standard deviation changes at a constant
  rate.

[vickyvicksss]

Answer to Question 1

A

Answer to Question 2

A

[kamilo84]

TYSM

[scikid]

Excellent