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In a sample of 331 Americans, 15% decided to not go to college do so because...

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Statistics

In a sample of 331 Americans, 15% decided to not go to collegedo so because they cannot afford it.

(a) Suppose we wanted the margin of error for the 90% confidencelevel to be at most 1.5%. How large of a survey would yourecommend? (Do not use the estimate of p given by the sample.)

(b) Suppose we wanted the margin of error for the 90% confidencelevel to be at most 1.5%. How large of a survey would yourecommend? (Now make the estimate that p≈0.15 .)

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