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scan0036 - 2 Suppose that hemoglobin level X of white males...

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Unformatted text preview: 2. Suppose that hemoglobin level X of white males over the age of 11 is normally distributed with ' mean 14.5 g per 100ml and variance 1.0 (g per 100ml)2. A random sample of size 16 were selected. I La l 5-.” f: l :9 l6 (1 fl an"; _ X K ‘ ‘ l ;. (1) What distribution does X follow? . p ‘ \ w iv 51‘ f” 3:11. 'l >( xvii“? i S»! l f A“ , :1 "' ' I f- mg; -» 5,5 B we ' ”m *7 Manama?“ (2) How much is the mean of X"? "‘7 (3) How much is the vatiance of X? l _;,;,:.>»» m“ ‘9 ‘Vfilal «2/ E7; s ”” ,1 (72‘ 533% k ”7““‘Juwm‘ 7"”- K . Z 2’] O Q 5 5/} i N ”war“ if, 2 ...
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