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A national random sample of 20 ACT scores from 2010 is listed below. Calculate the sample mean and standard deviation. 29, 26, 13, 23, 23, 25, 17, 22, 17, 19, 12, 26, 30, 30, 18, 14, 12, 26, 17, 18 a. 20.50, 5.79 b. 20.50, 5.94 c. 20.85, 5.79 d. 20.85, 5.94

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A national random sample of 20 ACT scores from 2010 is listed below. Calculate the sample mean and standard deviation.

29, 26, 13, 23, 23, 25, 17, 22, 17, 19, 12, 26, 30, 30, 18, 14, 12, 26, 17, 18

a. 20.50, 5.79

b. 20.50, 5.94

c. 20.85, 5.79

d. 20.85, 5.94
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d. 20.85, 5.94
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