An Experiment Was Performed on a Certain Metal to Determine

question 63

Essay

An experiment was performed on a certain metal to determine if its 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 .Time is in minutes,strength is measured in pounds per square inch,MSE
= 0.5,= 30,and
= 104.The distance value has been found to be equal to 0.17143.Determine the 95 percent prediction interval for the strength of a metal sheet when the average heating time is 4 minutes.

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