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Chapter 10: Q.131 (page 610)

A recent drug survey showed an increase in use of drugs and alcohol among local high school students as compared to the national percentage. Suppose that a survey of 100 local youths and 100 national youths is conducted to see if the proportion of drug and alcohol use is higher locally than nationally

Short Answer

Expert verified

The given statement is an independent group means, population standard deviations, and/or variances known.

Step by step solution

01

Given Information

A survey of 100 local youths and 100 national youths is conducted to see if the proportion of drug and alcohol use is higher locally than nationally.

02

Explanation

Testing can be carried out after calculating the mean and variance of both samples. Independent group means population standard deviations, and/or variances are known.

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