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Chapter 10: Q.58 (page 599)

Calculate the test statistic.

Short Answer

Expert verified

The value of test statistics is4.4976

Step by step solution

01

Given information

we need to determine pooled population by using the given formula

02

Explanation

we can find the value of test statistics by the following

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Most popular questions from this chapter

A concerned group of citizens wanted to know if the proportion of forcible rapes in Texas was different in 2011

than in 2010.Their research showed that of the 113,231violent crimes in Texas in 2011,7622of them were forcible rapes. In 2011,7439of the 104,873violent crimes were in the forcible rape category. Test at a 5%significance level.

Answer the following questions:

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d. What are the null and alternative hypothesis? Write the null and alternative hypothesis in symbols.

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g. Do you reject or not reject the null hypothesis?

h. At the ___ level of significance, from the sample data, there ______ (is/is not) sufficient evidence to conclude that

____________.

Use the following information to answer the next 15 exercises: Indicate if the hypothesis test is for

a. independent group means, population standard deviations, and/or variances known

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