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Chapter 9: Q.30 (page 548)

A researcher plans to conduct a significance test at the 伪=0.01significance level. She designs her study to have a power of 0.90 at a particular alternative value of the parameter of interest. The probability that the researcher will commit a Type Il error for the particular alternative value of the parameter at which she computed the power is

(a) 0.01

(b) 0.10

(c) 0.89

(d) 0.90

(c) 0.99

Short Answer

Expert verified

The probability that the researcher will commit a Type Il error for the particular alternative value of the parameter at which she computed the power is option b.0.10

Step by step solution

01

Introduction

A type I error is a sort of issue that happens during the speculation testing process when an invalid theory is dismissed, despite the fact that it is precise and ought not to be dismissed.

02

Explanation

Given,

A researcher plans to conduct a significance test at the 伪=0.01significance level.

power = 0.90

Probabilty of type II error = 1-power

=1-0.90=0.10

Hence option b. 0.10is correct

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