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In 2002 General Social Survey asked, "what do you think is the ideal number of children...

In 2002 General Social Survey asked, "what do you think is the ideal number of children for a family to have?" The 30 females who responded had a mean of 3.08 and a standard deviation of 1.91.

a) Are the conditions met by his data to calculate a 90% confidence interval for the population mean? Explain

b) Regardless of what your answer to part (a) is, compute a 90% interval for the population mean.

c) How many females should be sampled in order to get a 95% confidence interval with a margin of error .50

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