Find the Z-scores that separate the middle 86% of the distribution

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Find the Z-scores that separate the middle 86% of the distribution

Find the Z-scores that separate the middle 86% of the distribution from the area in the tails of the standard normal distribution.

Click the icon to view a table of areas under the normal curve.

The Z-scores are _______

math Statistics-And-Probability

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Answer 1

Answer #1

P(|Z| < z) = 0.86

P(Z < z) = 0.86 + (1 - 0.86)/2 = 0.93

Take the value of Z corresponding to 0.93 from standard normal distribution table

1.48

The z scores are -1.48,1.48

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Answer 2

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Find the Z-scores that separate the middle 86% of the distribution

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Find the Z-scores that separate the middle 86% of the distribution

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