Refer to the study in Example 3. The recovery times (in days) for Group 2 are listed
Question:
Refer to the study in Example 3. The recovery times (in days) for Group 2 are listed below. Find the sample variance and standard deviation of the recovery times.
43 57 18 45 47 33 49 24
a. Find the sum of squares.
b. Divide by n - 1 to get the sample variance.
c. Find the square root of the sample variance to get the sample standard deviation.
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a x x n 316 8 395 SS x x x 2 1240 b s 2 x x 2 n ...View the full answer
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Related Book For
Elementary Statistics Picturing The World
ISBN: 9780321911216
6th Edition
Authors: Ron Larson, Betsy Farber
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