SOLUTION: Find a value of the standard normal random variable z0, with the following probabilities: P(z<z0)=0.7497. so z0=? Thank you for the explanation for this question.

Algebra ->  Probability-and-statistics -> SOLUTION: Find a value of the standard normal random variable z0, with the following probabilities: P(z<z0)=0.7497. so z0=? Thank you for the explanation for this question.      Log On


   

Question 944543: Find a value of the standard normal random variable z0, with the following probabilities: P(z Thank you for the explanation for this question.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Find a value of the standard normal random variable z0, with the following probabilities: P(z ---------
Draw a picture of the normal curve so you can
understand the answer when you get it.
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mean = 0
std = 1
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Plot a z-value on the horizontal axis that has
a left tail of 0.7497.
Note that that z-value has area = 0.2497 to the right
of the mean.
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Now find the area to the left of that z-value.
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I use a TI-84 to get the following::
invNOrm(0.7497) = 0.6736
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That is the area under the curve to the left of z = 0.7497.
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Cheers,
Stan H.