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Chapter 1: Q12 (page 10)

In Exercises 9鈥�12, determine whether the sampling method appears to be sound or is flawed.

Smartphone Usage In a survey of smartphone ownership, the Pew Research Center randomly selected 1006 adults in the United States.

Short Answer

Expert verified

The sampling method appears to be sound.

Step by step solution

01

Given information

The Pew Research Center studied smartphone usage using 1006 randomly selected adults in the United States.

02

Step 2:Explanation of sampling method

In the United States, the research was based on all smartphone owners. The center, however, randomly selected only 1006 adults from the population.

03

Step 3:Analysis of biasedness based on the sample

When samples are collected in a manner that they are non-biased and represent the population appropriately, the sampling method can be trusted for providing accurate observations.

In this case, the survey selected the experimental units (owners of smartphones) in a clear random way. Also, the organization is a reliable research center.

As a result, the outcomes of the observations are expected to be accurate and reliable.

Thus, the sampling method appears to be without flaws.

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