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Unformatted text preview: a) z>2.05 b) z< .33 c) 1.2 < z < 1.8 d) z< 1.28 3. In a standard normal model what value of z cuts off the region described (shade the region) a) the highest 20% b) the highest 75% c) the lowest 3% d) the middle 90% 4. Find the missing parameter of N( μ , σ ) model a) μ = 1250, 35% below 1200, σ = ? b) σ = 0.5, 90% above 10, μ = ? 5. Exercise 42, p. 126 . Normal Curves (print for the future use)...
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 Summer '08
 dikong
 Normal Distribution, 20%, 3%, 75%, 35%, 90%

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