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SD= sqrt[((n1-1)*SD1^2 + (n2-1)*SD2^2] / (n1+n2-2)] Mean 1 (yes) = 10.9476, SD1 = 4.39097, n1 = ? Mean 2 (no) = 9.0367, SD2 = 3.27894,
SD= sqrt[((n1-1)*SD1^2 + (n2-1)*SD2^2] / (n1+n2-2)] Mean 1 (yes) = 10.9476, SD1 = 4.39097, n1 = ? Mean 2 (no) = 9.0367, SD2 = 3.27894, n2 = ? n1=248 n2=5341
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College Algebra
Authors: Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
12th edition
134697022, 9780134313795 , 978-0134697024
