SOLUTION: A social service worker wants to estimate the true proportion of
pregnant teenagers who miss at least one day of school per week on
average. The social worker wants to be within
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pregnant teenagers who miss at least one day of school per week on
average. The social worker wants to be within
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Question 714903: A social service worker wants to estimate the true proportion of
pregnant teenagers who miss at least one day of school per week on
average. The social worker wants to be within 5% of the true
proportion when using a 90% confidence interval. A previous study
estimated the population proportion at 0.21.
(a) Using this previous study as an estimate for p, what sample size
should be used?
(b) If the previous study was not available, what estimate for p
should be used Answer by lynnlo(4176) (Show Source):
(