Question

use the standard normal table or technology to find the z - score that corresponds to the cumulative area 0.3127. z = (type an integer or decimal rounded to two decimal places as needed.)

Explanation:

Step1: Use standard - normal table

Look up the cumulative area 0.3127 in the body of the standard - normal table.

Step2: Find the corresponding z - score

The z - score corresponding to a cumulative area of 0.3127 is approximately - 0.49.

Answer:

• 0.49