In a multiple regression based on 30 observations,the following information is provided: with .Also, evaluated at and is 2.8.
A)Construct a 95% confidence interval for if x₁ equals 40 and x₂ equals 30.
B)Construct a 95% prediction interval for y if x₁ equals 40 and x₂ equals 30.
C)Which interval is narrower? Explain.

Question

In a multiple regression based on 30 observations,the following information is provided:

with

.Also,

evaluated at In a multiple regression based on 30 observations,the following information is provided: with .Also, evaluated at and is 2.8. A)Construct a 95% confidence interval for if x1 equals 40 and x2 equals 30. B)Construct a 95% prediction interval for y if x1 equals 40 and x2 equals 30. C)Which interval is narrower? Explain.

and

is 2.8.
A)Construct a 95% confidence interval for In a multiple regression based on 30 observations,the following information is provided: with .Also, evaluated at and is 2.8. A)Construct a 95% confidence interval for if x1 equals 40 and x2 equals 30. B)Construct a 95% prediction interval for y if x1 equals 40 and x2 equals 30. C)Which interval is narrower? Explain.

if x₁ equals 40 and x₂ equals 30.
B)Construct a 95% prediction interval for y if x₁ equals 40 and x₂ equals 30.
C)Which interval is narrower? Explain.

Quizplus · Accepted Answer

The Answer of In a multiple regression based on 30 observations,the following information is provided: with .Also, evaluated at and is 2.8. A)Construct a 95% confidence interval for if x₁ equals 40 and x₂ equals 30. B)Construct a 95% prediction interval for y if x₁ equals 40 and x₂ equals 30. C)Which interval is narrower? Explain.

In a Multiple Regression Based on 30 Observations,the Following Information