SOLUTION: Q: The scores on a national achievement test were normally distributed with μ=655 and σ=146. If you were informed that you scored at the 44th percentile, what was your te

Algebra ->  Probability-and-statistics -> SOLUTION: Q: The scores on a national achievement test were normally distributed with μ=655 and σ=146. If you were informed that you scored at the 44th percentile, what was your te      Log On


   

Question 709600: Q: The scores on a national achievement test were normally distributed with μ=655 and σ=146. If you were informed that you scored at the 44th percentile, what was your test score?
Answer by stanbon(75887) About Me  (Show Source):
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Q: The scores on a national achievement test were normally distributed with μ=655 and σ=146. If you were informed that you scored at the 44th percentile, what was your test score?-
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Find the z-value with a left tail of 0.44
invNorm(0.44) = -0.1510
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Find the corresponding score using x = z*s + u
x = -0.1510*146 + 655 = 632.96
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Cheers,
Stan H.
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