4. According to American Community Survey, 48% of men in the US have been married at least once by age 30 Suppose we gat

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4 According To American Community Survey 48 Of Men In The Us Have Been Married At Least Once By Age 30 Suppose We Gat 1 (42.98 KiB) Viewed 77 times

4. According to American Community Survey, 48% of men in the US have been married at least once by age 30 Suppose we gather a random sample of 505 men from the US and see what percentage of those have been married at least once. a. (1) What is the population in this study? b. (1) What is the sample in this study? c (3) Can we assume that the distribution of sample proportions will be normally distributed? Explain. d. (1) What do we expect for the mean of the distribution of sample proportions? e. (3) What do we expect for the standard deviation of the distribution of sample proportions (the standard error)? 1 5. (4) We want to know what proportion of StatCrunchu students do not have a job. So, we take a random sample of 500 students. StatCrunch returns this table: 90% confidence interval results Variable Count Total Sample Prop. Std. Err. L. Limit U.Limit 286 500 0.572 0.02212763 0.53560329 0.60839671 Interpret these results as a confidence interval in context. Work