For Each Situation Below,construct the 95% Confidence Interval Estimate to the Population.Assume

Essay

For each situation below,construct the 95% confidence interval estimate to the population.Assume that the results are based on a nationally representative sample.Express the estimate in a sentence.
a.The average age of the 1225 respondents was 25.3 with a standard deviation of 1.9.
b.Of the 998 respondents questioned, 246 identified themselves as Catholic.
c.Of the 1220 respondents for whom we have information, 178 said that they had been divorced at least once.
d.Four hundred and thirty two of the 668 respondents questioned said that they favored capital punishment for people convicted of murder. Ten years ago, in response to the same question, 378 out of 703 people were in favor of capital punishment. Has support for capital punishment risen over the ten year period?
e.The average number of children for the 945 respondents for which we have information was 1.98 with a standard deviation of 1.04.
f.The average years of school completed for 734 respondents was 11.9 with a standard deviation of 0.5.