SOLUTION: Find the two standard scores (z) that correspond to the following. (Enter your answers from smallest to largest. Give your answers correct to two decimal places.) The middle 75

Question 1127547: Find the two standard scores (z) that correspond to the following. (Enter your answers from smallest to largest. Give your answers correct to two decimal places.)
The middle 75% of a normal distribution is bounded by them
The middle 83% of a normal distribution is bounded by them.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Find the two standard scores (z) that correspond to the following. (Enter your answers from smallest to largest. Give your answers correct to two decimal places.)
The middle 75% of a normal distribution is bounded by them
That leaves 25% in the tails.
Each tail has 12.5%
Left boundary = z = invNorm(0.125) = -1.1503
Right boundary = z = +1.1503
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The middle 83% of a normal distribution is bounded by them.
That leaves 17% in the tails.
Each tail has 8.5%
Left boundary = z = invNorm(0.085) = -1.3722
Right boundary = z = +1.3722
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Cheers,
Stan H.
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