Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of...

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Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of...

Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If P ( − 0.6 < z < b ) = 0.3456 , find b. b = (Round to three decimal places.) Do not round until the very last step. Any intermediate steps should include all decimal places.

math Statistics-And-Probability

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Answer 1

Answer #1

P(-0.6<Z<b)=0.3456

=> P(Z<b)-P(Z<-0.6)=0.3456

=> P(Z<b)-0.2742531=0.3456

=> P(Z<b)=0.3456+0.2742531=0.6198531=P(Z<0.305095)

So,b=0.305095

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Answer 2

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