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Chapter 6: Q. 6.83 (page 269)

Complete the following table

z0.10
z0.05
z0.025
z0.01
z0.005
1.28




Short Answer

Expert verified

The completed table is

Step by step solution

01

Given information

The given data is

02

Explanation

The z-score, z0.05, has a right-hand area of 0.05and a left-hand area of 1-0.05=0.95.

Table II of Appendix A shows the area under the standard normal curve to the left of the z-score. The area 0.95s related z-score is 1.645.

The z-score, z0.025has the area of 1-0.025=0.975to its left. The corresponding z-score of the area 0.975is 1.96.

The z-score, z0.01has the area of 1-0.01=0.99to its left. The corresponding z-score of the area 0.99is 2.33.

The z-score, z0.005has the area of 1-1.005=0.995to its left. The corresponding z-score of the area 0.995is 2.575.

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