Mathematics, 27.05.2020 15:58 Xavier2712
In a survey of 1000 American adults conducted in April 2012, 43% reported having gone through an entire week without paying for anything in cash. Test to see if this sample provides evidence that the proportion of all American adults going a week without paying cash is greater than 40%. Use the fact that a randomization distribution is approximately normally distributed with a standard error of SE=0.016. Show all details of the test and use a 5% significance level.
1. State the null and alternative hypotheses.
2. What is the test statistic? Round your answer to two decimal places.
3. What is the p-value? Round your answer to two decimal places.
4. What is the conclusion?
Answers: 3
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