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Individuals are weighed before and after an exercise program. We wish to find out if the exercise program is effective in hel

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soleton & let X X2 154 150 161 158 X = data of Before Xq = data of Affer (x1 - x)2 (X2-F2) - 41.3333 1708.4417 - 37.4444 -34.nok 30 & m 230 So use t- distribytia, Test statisties d ni nz where, sa {(x,- X, )² + {(x2=X22 hit n2-2 t X S. d nithe S = IS

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