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-PLEASE SHOW ALL WORK- For this problem, carry at least four digits after the decimal in your...

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Basic Math

-PLEASE SHOW ALL WORK-

For this problem, carry at least four digits after the decimalin your calculations. Answers may vary slightly due torounding.

A random sample of medical files is used to estimate theproportion p of all people who have blood type B.

(i) If you have no preliminary estimate for p, how manymedical files should you include in a random sample in order to be85% sure that the point estimate p? will be within a distance of0.03 from p? (Round your answer up to the nearest wholenumber.)

_______ medical files

(ii) Answer part (i) if you use the preliminary estimatethat about 11 out of 90 people have blood type B.

_______ medical files

Answer & Explanation Solved by verified expert
4.3 Ratings (785 Votes)
Solution Given that051 1 05 05margin of error E 003At 85 confidence level the    See Answer
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