An experiment was performed on a certain metal to determine if the strength is a function of heating time.Partial results based on a sample of 10 metal sheets are given below.The simple linear regression equation is = 1 + 1X .The time is in minutes and the strength is measured in pounds per square inch,MSE = 0.5, = 30, = 104. Determine the 95% confidence interval for the average strength of a metal sheet when the average heating time is 2.5 minutes.
A)(2.94 4.06)
B)(1.78 5.22)
C)(3.31 3.69)
D)(1.94 3.06)

Question

An experiment was performed on a certain metal to determine if the strength is a function of heating time.Partial results based on a sample of 10 metal sheets are given below.The simple linear regression equation is  = 1 + 1X .The time is in minutes and the strength is measured in pounds per square inch,MSE = 0.5,  = 30,  = 104. Determine the 95% confidence interval for the average strength of a metal sheet when the average heating time is 2.5 minutes.
A)(2.94 4.06) 
B)(1.78 5.22) 
C)(3.31 3.69) 
D)(1.94 3.06)

Quizplus · Accepted Answer

The Answer of An experiment was performed on a certain metal to determine if the strength is a function of heating time.Partial results based on a sample of 10 metal sheets are given below.The simple linear regression equation is  = 1 + 1X .The time is in minutes and the strength is measured in pounds per square inch,MSE = 0.5,  = 30,  = 104. Determine the 95% confidence interval for the average strength of a metal sheet when the average heating time is 2.5 minutes.
A)(2.94 4.06) 
B)(1.78 5.22) 
C)(3.31 3.69) 
D)(1.94 3.06)

An Experiment Was Performed on a Certain Metal to Determine