Try It 3. Four out of five randomly chosen teenagers support the new landfill. So, you conclude that 80% of the residents of your town support the new landfill Is the conclusion valid? Explain.

Algebra and Trigonometry (6th Edition)
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ISBN:9780134463216
Author:Robert F. Blitzer
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ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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11
Determining Whether Conclusions Are Valid
You want to know how the residents of your town feel about adding a
new landfill. Determine whether each conclusion is valid.
a. You survey the 100 residents who live closest
to the new landfill. The diagram shows the
New Landfill
results. You conclude that 10% of the residents
For
of your town support the new landfill.
10
The sample is not representative of the
population because residents who live close
to the landfill may be less likely to support it.
Against
90
So, the sample is biased, and the conclusion
is not valid.
b. You survey 100 residents at random. The table shows the results.
You conclude that 60% of the residents of your town do not support
the new landfill.
The sample is representative of the population because it is selected at
random and is large enough to provide accurate data.
So, the sample is unbiased, and the conclusion is valid.
Try It
3. l'our out of five randomly chosen teenagers support the new landfill.
So, you conclude that 80% of the residents of your town support the new
landfill Is the conclusion valid? Explain.
Transcribed Image Text:urmAMA/edit Tools Add-ons Help Last edit was 15 minutes ago ext Arial BIUA * 11 Determining Whether Conclusions Are Valid You want to know how the residents of your town feel about adding a new landfill. Determine whether each conclusion is valid. a. You survey the 100 residents who live closest to the new landfill. The diagram shows the New Landfill results. You conclude that 10% of the residents For of your town support the new landfill. 10 The sample is not representative of the population because residents who live close to the landfill may be less likely to support it. Against 90 So, the sample is biased, and the conclusion is not valid. b. You survey 100 residents at random. The table shows the results. You conclude that 60% of the residents of your town do not support the new landfill. The sample is representative of the population because it is selected at random and is large enough to provide accurate data. So, the sample is unbiased, and the conclusion is valid. Try It 3. l'our out of five randomly chosen teenagers support the new landfill. So, you conclude that 80% of the residents of your town support the new landfill Is the conclusion valid? Explain.
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