A General Social Survey asked subjects, How long have you lived in the city, town, or community
Question:
A General Social Survey asked subjects, “How long have you lived in the city, town, or community where you live now?” The responses of the 1415 subjects had a median of 16 years, a mean of 20.3, and a standard deviation of 18.2.
(a) Do you think that the population distribution is normal?
Why or why not?
(b) Based on your answer in (a), can you construct a 99%
confidence interval for the population mean? If not, explain why not. If so, do so and interpret.
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