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A vol 14 .4 s=22.26 (sample standard deviation) a =.05 4. Test the hypothesis Ho: u =2000 versus Hi: u >2000 n=30 x-bar=2150

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Page 110.. - Ho : M = 2000 Hi il = 2000 m=30 nr =2150 s = 120 L -0.05 t = n-M 2 2150 - 2000 sint 120/230-1 = 150 20 1929 2 15

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