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Chapter 9: Q.1 (page 546)

Simon reads a newspaper report claiming that 12% of all adults in the United States are left-handed. He wonders if 12% of the students at his large public high school are left-handed. Simon chooses an SRS of 100 students and records whether each student is right- or left-handed.

Short Answer

Expert verified

Population for the left-handed students is equal to0.12according to null hypothesis and not equal to0.12according to alternative hypothesis.

Step by step solution

01

introduction

Given,

sample size =100

left-handed adults in the United States = 12%= 0.12

Whether each student is right- or left-handed is calculated.

02

explanation

The population =12%as per the null hypothesis.

⇒H0:p=0.12

The population is not equal to12%as per the alternative hypothesis.

⇒Ha:p≠0.12

Hence, The population of left-handed students is 0.12as per the null hypothesis and the population is not equal to0.12as per the alternative hypothesis.

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