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Chapter 8: Q.31 (page 496)

98% Confidence find z*for a98%confidence interval using table A or tour calculator. show your method.

Short Answer

Expert verified

The value of z*is 2.33

Step by step solution

01

Step-1 Given Information

Given in the question that the confidence level is98%we have to find the value ofz*.

02

Step-2 Explanation

Convert the confidence level 98%into decimal:

98100=0.98

use table A,

z伪2=z0.01=2.33

z*=2.33

Hence the value ofz*is2.33

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