In a simple linear regression based on 30 observations,the following information is provided: = 32.3 + 1.45x and s_e= 3.2.Also, evaluated at x = 20 is 1.3.
a.Construct a 95% confidence interval for E(y)if x = 20.
b.Construct a 95% prediction interval for y if x = 20.

Question

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

= 32.3 + 1.45x and s_e= 3.2.Also, In a simple linear regression based on 30 observations,the following information is provided: = 32.3 + 1.45x and s<sub>e </sub>= 3.2.Also, evaluated at x = 20 is 1.3. a.Construct a 95% confidence interval for E(y)if x = 20. b.Construct a 95% prediction interval for y if x = 20.

evaluated at x = 20 is 1.3.
a.Construct a 95% confidence interval for E(y)if x = 20.
b.Construct a 95% prediction interval for y if x = 20.

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The Answer of In a simple linear regression based on 30 observations,the following information is provided: = 32.3 + 1.45x and s_e= 3.2.Also, evaluated at x = 20 is 1.3. a.Construct a 95% confidence interval for E(y)if x = 20. b.Construct a 95% prediction interval for y if x = 20.

In a Simple Linear Regression Based on 30 Observations,the Following