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In mechanics of materials lab, students are asked to compute the observed relati

ID: 3157759 • Letter: I

Question

In mechanics of materials lab, students are asked to compute the observed relative error or uncertainty for the minilab of coil spring. Givent linear regression analysis output for spring constant K obtained by one group of students as shown below Coefficients Standard Error t Stat P-value 3.090660129 0.784407377 3.940121194 0.00429516 Intercept ×variable (K) I 5339 1.256376326 12 74156 1.2423E-06 16.19185339 1.256376326 88774156 a. The error of spring constant K = 1.2564 (4DP) b. The observed relative error-x100% = 7.76% ( Format of your solution: 1.23%)

Explanation / Answer

b) k = 102.15

4)REJECT Ho(null hypothesis)

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