Problem 4 Samples of eastern white pine lumber were collected (found in the spreadsheet), and a particular loading was applied to each. For each piece of lumber, the modulus of elasticity (in MPa) was found one minute after the loading was applied, and it was again found after four weeks. What can you say about the claim that the modulus of elasticity decreases by over 2500 MPa at four weeks relative to one minute after loading? Use the p-value approach and draw conclusions with 95% confidence.

Problem 4 Samples of eastern white pine lumber were collected (found in the spreadsheet), and a particular loading was applied to each. For each piece of lumber, the modulus of elasticity (in MPa) was found one minute after the loading was applied, and it was again found after four weeks. What can you say about the claim that the modulus of elasticity decreases by over 2500 MPa at four weeks relative to one minute after loading? Use the p-value approach and draw conclusions with 95% confidence.

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter10: Sequences, Series, And Probability

Section10.8: Probability

Problem 31E

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Problem 4
Samples of eastern white pine lumber were collected (found in the spreadsheet), and a
particular loading was applied to each. For each piece of lumber, the modulus of elasticity (in
MPa) was found one minute after the loading was applied, and it was again found after four
weeks. What can you say about the claim that the modulus of elasticity decreases by over 2500
MPa at four weeks relative to one minute after loading? Use the p-value approach and draw
conclusions with 95% confidence.