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Chapter 6: Q. 6.78 (page 269)

DetermineZ0.015

Short Answer

Expert verified

The z-score under the usual normal curve with area 0.015 to the right is around 2.17.

Step by step solution

01

Given information

The given area is0.015.

02

Explanation

The given area is 0.015

The z-score for which the area under the standard normal curve to its right is 0.015will be identical to the z-score for which the area under the standard normal curve to its left is 1-0.015=0.985.

Begin by looking for the region 0.985 in the table's body. 2.17is the z-score that corresponds to it.

As a result, the z-score under the usual normal curve with area 0.015to the right is around 2.17, which may be depicted as

Below is a section of the standard normal table that is relevant:

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