Chapter 6, Problem 9P

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8th Edition

Frederick J Gravetter + 1 other

ISBN: 9781133956570

Textbook Problem

Find the *z*-score location of a vertical line that separates a normal distribution as described in each of the following.

- a. 5% in the tail on the left
- b. 30% in the tail on the right
- c. 65% in the body on the left
- d. 80% in the body on the right

**a.**

To determine

The z-score that separates the 5% in the tail on left.

Explanation

**Given info:** Normal distribution where z- score separates the highest 5% in the tail on left.

**Calculation:**

Since, Z represents the standard normal variate. Let z is the score that separates the highest 5% of the scores from the rest of the distribution...

**b.**

To determine

**To find:** The z-score that separates the 30% in the tail on right

**c.**

To determine

**To find:** The z-score that separates the 65% in the body on left.

**d.**

To determine

**To find:** The z-score that separates the 80% in the body on right.

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