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According to a survey of 1000 adult Americans, 220 of those surveyed said playin

ID: 3326729 • Letter: A

Question

According to a survey of 1000 adult Americans, 220 of those surveyed said playing the lottery would be the most practical way for them to accumulate $200,000 in net wealth in their lifetime. Although the article does not describe how the sample was selected, for purposes of this exercise, assume that the sample can be regarded as a random sample of adult Americans. Is there convincing evidence that more than 20% of adult Americans believe that playing the lottery is the best strategy for accumulating $200,000 in net wealth? Use = 0.05. (Round your test statistic to two decimal places and your P-value to four decimal places.)

The data  ---Select--- provides enough does not provide enough evidence to suggest that more than 20% of all adult Americans believe that playing the lottery is the best strategy for accumulating $200,000 in net wealth.

z = P =

Explanation / Answer

19.47 to 24.70

Since p-value is greater than 0.05, we fail to reject the null hypothesis that there is not enough evidence to suggest that more than 20% of all adult Americans believe that playing the lottery is the best strategy for accumulating $200,000 in net wealth.

z-statistic 1.581 Significance level P = 0.1138 95% CI of observed proportion

19.47 to 24.70

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