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Morocco project $-...$

$40$ Interesting Mor...

Morocco project $-...$

Morocco project $-..$

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As part of a larger project to study the behavior of stressed$-$skin panels, a structural component being used extensively in North America, an article reported on various mechanical properties of Scotch pine lumber specimens. Data on the modulus of elasticity $($MPa$)$ obtained $1$ minute after loading in a certain configuration and $4$ weeks after loading for the same lumber specimens is presented here.

$\backslash$table$[[$Observation$,1$ min,$4$ weeks,Difference$],[1,10,460,9,120,1340],[2,16,620,13,250,3370],[3,17,300,14,720,2580],[4,15,480,12,720,2760],[5,12,940,10,120,2820],[6,17,260,14,570,2690],[7,13,400,11,220,2180],[8,13,900,11,100,2800],[9,13,630,11,420,2210],[10,13,270,10,910,2360],[11,14,370,12,110,2260],[12,11,700,8,620,3080],[13,15,470,12,590,2880],[14,17,840,15,090,2750],[15,14,070,10,550,3520],[16,14,760,12,230,2530]]$

your answer to two decimal places.$)$

$$ MPa