(a)
To explain: The sampling method that can be used to estimate the percentage of adults in the community who support building more nuclear power plants.
Systematic sampling can be used to pick a sample to study about the percentage of adults in the community who support building more nuclear power plants.
Given:
A study is conducted to estimate the percentage of adults in the community who support building more nuclear power plants.
Explanation:From the list of all adults in the community, every fifth person is picked to know about their opinion about building more nuclear power plants. Thus the sampling method used is systematic sampling as the sample is picked at periodic intervals.
(b)
To explain: An example of an unbiased survey question to be asked to adults about building more nuclear power plants.
“Are you in favour of building more nuclear power plants” this is an unbiased question to be asked to collect the data.
A question to be asked to all adults in the sample has to be a direct question without any bias like “Do you prefer building more nuclear power plants?” with respect to the responses of the sample data the percentage of the adults who support building more nuclear power plants can be estimated.
Chapter 11 Solutions
High School Math 2015 Common Core Algebra 2 Student Edition Grades 10/11
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