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# Su95Ex3sol - EGN 342i EXAM 3 Su 95 Problem 1 The following...

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Unformatted text preview: EGN 342i] EXAM 3 Su 95 Problem 1 The following table contains vehicle stopping distanees as a function of speed. A) Find 1. the least squares regression line thru the data points, D = an + at?“ 2. the fellowh-rg surn ofsquates: SST, SSE, and SSBL 3. the coefﬁcient of determination 1'2 and the correlation coefﬁcient r. E) Fill in the table below and ﬁnd the equation of the least squares quadratic. C} Calculate SST, SSE, 33R, fl, and 1". D} Plot the given data points, the least squares line and the least squares quadratic on the same graph. EGN 342E} EXAM 3 Su 95 Problem 2 Estimate the ﬁmetiml ﬁx) = e" at x=1 by ﬁtting a 3rd order Newton Divide-d Difference polynomial thru the four points: (0, e"), {(15, en's}, {1.5, e”) and (2, e2}. Express the coefﬁcients 1);, i=ﬂ,1,2,3 to five planes after the decimﬂ point and use them to estimate ﬁl). ‘ ...
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