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Compute the standard error of the? estimate

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Reference no: EM132202830

As concrete? cures, it gains strength. The following data represent the? 7-day and? 28-day strength in pounds per square inch? (psi) of a certain type of concrete.

Data:

7-Day_Strength_(psi) x                                     28-Day_Strength_(psi) y

3330                                                                             4850

2620                                                                             4190

2300                                                                             4070

3380                                                                             5020

3390                                                                             5220

(A)Treating the? 7-day strength as the explanatory? variable, x, use technology to determine the estimates of β0and β1.

(B) Compute the standard error of the? estimate

(C) Determine sb1

(D) Determine the P value

(E) Construct a? 95% confidence interval about the slope of the true? least-squares regression line. (Lower bound, Upper bound)

Reference no: EM132202830

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