Solve the problem. For a normal distribution, find the probability that an observation is at least 2 standard deviations below the mean. Sketch a curve and show the tail probability. O 0.9772 μ + 20 0.0228 H-20 0.9772 μ-20 0.0139 H-20

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A: given data μ =35n = 30x¯ = 37.2σ = 6.6α = 0.09

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Q: 1.44

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A: Given P=0.87 X=133 n=161

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A:

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Q: 11. Suppose f(x)= Y = 4x+1; vilx x = 2, find g(y) u

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A: Given data: Significance level= 0.01

Q: A recent poll indicated that 42% of men supported raises taxes to fund additional park services.…

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Q: Find the sample standard deviation. Round to the nearest tenth 15, 42, 53, 7, 9, 12, 14, 28, 47

A: Given data is15, 42, 53, 7, 9, 12, 14, 28, 47sample size(n)=9

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A: given data company Ax¯1  = 0.745s1 = 0.031n1 = 20group 2x¯2  =0.313s2 = 0.027n2 = 899% ci for μ1-μ2…

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Q: Foot Length 281.8 278.2 252.8 258.8 278.8 257.7 274.0 262.4 O Height 1785.1 1770.8 1676.3 1645.8…

A:

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A: Solution: Given information: n1=230n2=205x1=77.7x2=75.9s1=8.8s2= 7.5

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Q: Rating of Male by Female 40 35 49 37 39 Rating of Female by Male 50 35 39 M档位西游BB站两筛設路轩科轫契燜刀…

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