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Question: A sociologist wishes to estimate the proportion of all adults in a certain region who have never married. In a random sample of 1,320 adults, 145 have never married, hence 145/1320 ≈ .11 or about 11% have never married.

a. What is the population of interest?

b. What is the parameter of interest?

c. What is the statistic involved?

d. Based on this sample, do we know the proportion of all adults who have never married? Explain fully.

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