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Suppose in a study of 1000 American adults over the age of 25 it is found that 462 have obtained a degree beyond a high
Suppose in a study of 1000 American adults over the age of 25 it is found that 462 have obtained a degree beyond a high school diploma. Use this information to estimate with 95% confidence the proportion of all American adults over the age of 25 that have a degree. A) ( , ) B) Will this interval support the claim that at least 44% of American adults over the age of 25 have a degree beyond high school? Yes or no? C) Suppose we would like to estimate with 99% confidence but maintain the margin of error from the interval calculated in part A. How many American adults over the age of 25 should we sample in order to meet these criterion
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