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How hard is it to reach a business person by phone? Let be the proportion of calls to business people for which the caller reaches
How hard is it to reach a business person by phone? Let be the proportion of calls to business people for which the caller reaches the person being called on the first try. If you have no preliminary estimate for, how many business phone calls should you include in a random sample to be 80% sure that the point estimate will be within a distance of 0.03 from.
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