Hypothesis tests for proportions In 2007, a Gallup poll estimated that 45% of U.S. adults rated...

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Hypothesis tests for proportions

In 2007, a Gallup poll estimated that 45% of U.S. adults rated their financial situation as good. We want to know if the pr

b. There is an 11.4% chance that the percentage of adults who rate their financial situation as good is now less than 45%.

math Statistics-And-Probability

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Answer 1

Answer #1

as p value is probabiltiy of getting sample test statistic or more extreme if null hypothesis is true

a) Invalid

b) invalid

c)Valid statement,

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Answer 2

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In 2007, a Gallup poll estimated that 45% of U.S. adults rated their financial situation as...

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The Pew Research Center reported in 2018 that 68% of U.S. adults rated "reducing health care...

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