Sentences were chosen at random from Fritjof Capra's book The Tao of Physics. The number of words in the sentences were counted. This is the result.

4

12

13

13

20

19

19

23

14

12

12

18

19

21

13

15

10

6

9

21

23

5

15

19

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.