A direct mail company wishes to estimate the proportion of people on a large mailing list...

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A direct mail company wishes to estimate the proportion of people on a large mailing list...

A direct mail company wishes to estimate the proportion of people on a large mailing list that will purchase a product. Suppose the true proportion is 0.07 . If 497 are sampled, what is the probability that the sample proportion will be less than 0.05? Round your answer to four decimal places.

math Statistics-And-Probability

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Answer 1

Answer #1

=P[Z<-1.75]

=0.0401......................by using Z table.

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Answer 2

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