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Status: Waiting for your answers.

Given: Sentences were chosen at random from Michio Kaku's book The Future of the Mind. The number of words in the sentences were counted. This is the result. 15 20 11 22 6 13 21 7 14 22 4 4 19 19 10 23 11 15 16 12 3 19 10 5 Problem: Use the data above to: a) determine the mean and sample standard deviation, b) calculate a 95% margin of error, c) determine the respective confidence interval.     Mean (x̄) = Sample Standard Deviation (s) = Margin of Error = The confidence interval is [, ]