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A company that manufactures golf clubs wants to estimate the proportion of golfers who are left-handed....

A company that manufactures golf clubs wants to estimate the proportion of golfers who are left-handed. How large a sample must they take if they want to be 90% certain that their estimate is within 6% of the true proportion? PLZ SHOW STEP BY STEP PS: STEPS TO DO IT ON TI 83 CALCULATOR?

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