In 2015 a Gallup poll reported that 52% of Americans were satisfied with the quality of the
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In 2015 a Gallup poll reported that 52% of Americans were satisfied with the quality of the environment. In 2018, a survey of 1024 Americans found that 461 were satisfied with the quality of the environment. Does this survey provide evidence that satisfaction with the quality of the environment among Americans has decreased? Use a 0.05 significance level.
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Related Book For
Introductory Statistics Exploring The World Through Data
ISBN: 9780135163146
3rd Edition
Authors: Robert Gould, Rebecca Wong, Colleen N. Ryan
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