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A Soap Manufacturer Wants to Know Within +4 Percentage Points

Question 25

Multiple Choice

A soap manufacturer wants to know within +4 percentage points what percentage of households use liquid soaps.To be 95% confident in the estimate,how many households should be sampled? (Note: a confidence interval greater than +4 percentage points is unacceptable. )


A) 600
B) 625
C) 700
D) 750
E) 550

Correct Answer:

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