Chapter 6, Problem 11P

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10th Edition

Frederick J Gravetter + 1 other

ISBN: 9781305504912

Textbook Problem

- Find the z-score boundaries that separate a normal distribution as described in each of the following.

d. The middle 60% from the 40% in the tails.

To determine

The z-score location of a vertical line that separates a Normal distribution.

Explanation

**Given:**

Find the z score as described in each of the following

**The middle 30% from the 70% in the tails.****The middle 40% from the 60% in the tails.****The middle 50% from the 50% in the tails.****The middle 60% from the 40% in the tails**

**Formula Used:**

Z = z score (It is the measure of how many standard deviations below or above the population mean)

P (aā¤Xā¤b) =

Ī¦(z) is the distribution func

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