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Chapter 10: Q. 1 (page 596)

It is believed that 70%of males pass their drivers test in the first attempt, while 65%of females pass the test in the first attempt. Of interest is whether the proportions are in fact equal.

Indicate if the hypothesis test is for :

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

b. independent group means, population standard deviations, and/or variances unknown

c. matched or paired samples

d. single mean

e. two proportions

f. single proportion

Short Answer

Expert verified

The test is for two proportions.

Step by step solution

01

Given information

It is believed that 70%of males pass their driver's test in the first attempt, while 65%of females pass the test in the first attempt.

02

Explanation

In the first attempt,70%of males pass their driver's test and 65%of females pass their test.

Assuming males pass the test in the first attempt to be pm and females pass the test to be pf, The null and alternative hypothesis is given as H0: pm=pf.

The alternative hypothesis for this is given as: Ha:pm鈮�pf.

This shows that this hypothesis test is for two proportions.

03

Final answer

The test is for two proportions.

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Indicate if the hypothesis test is for :-

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

b. independent group means, population standard deviations, and/or variances unknown

c. matched or paired samples

d. single mean

e. two proportions

f. single proportion
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