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Strayer,Devery,Harvard University
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Manager Planning
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problem 5. Normal distribution has mean μ = 250 and standard deviation σ=20.
Find the 70% percentile for this distribution.
Tip: From Appendix Table for Normal Distribution identify z that has area under the
curve close to 0.70. Then, plug z, μ, σ in the formula: z = (x – )/σ and find x.
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Show work.
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