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Step 1
For X = 119.1, z1 = (119.1 - 122.9) / 24.3 = -0.1568 For X = 124.5, z2 = (124.5 - 122.9) / 24.3 = 0.0658 We can then look up these z-scores in a standard normal distribution table or use a calculator to find the corresponding probabilities. P(119.1<X<124.5) = Show more…
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A population of values has a normal distribution with ? = 55.5 and ? = 79.7 . A random sample of size n = 104 is drawn. Find the probability that a single randomly selected value is between 57.1 and 71.9. Round your answer to four decimal places. P ( 57.1 < X < 71.9 ) = Find the probability that a sample of size n = 104 is randomly selected with a mean between 57.1 and 71.9. Round your answer to four decimal places. P ( 57.1 < M < 71.9 ) =
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