OpenStax, Statistics §8.3 A Population Proportion · Exercise 7 · Statistics · Confidence intervals
A Population Proportion · Exercise 7
Suppose a marketing company conducted a survey. It randomly surveyed 200 households and found that in 120 of them, the women made the majority of the purchasing decisions. We are interested in the population proportion of households where women make the majority of the purchasing decisions.
List two difficulties the company might have in obtaining random results if this survey were done by email.
Its source prints no answer for this problem, so there's nothing to check against.
OpenStax, Statistics · §8.3 A Population Proportion · Exercise 7
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