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No. & Date AskedQuestion
# 520 :: 11/23/08
Question 520 has been Answered
Your company asks you to compare a new advertising campaign and the old one. Sample data on the accounts as follows: Old: 40, 28, 35, 38, 31, 42, 26,. . .

Confidence Intervals, Median, Mode, mean, t-statistic, Standard Error of the Mean