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Chapter 6: Q. 6.72 (page 269)

Determine the z-score for which the area under the standard normal curve to its left is0.01.

Short Answer

Expert verified

The z-score under the usual normal curve with the area 0.01to the left is around-2.33.

Step by step solution

01

Given information

The area given area is 0.01.

02

Explanation

The given area is-0.01

Begin by looking for the area 0.01in the table's body. The item isn't on the table. 0.0099is the nearest area. The matching z-score for that area is-2.33.

As a result, the z-score under the usual normal curve with the area 0.01to the left is around -2.33, which may be depicted as

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

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