Question

In: Statistics and Probability

n = 8 measurements: 5, 3, 6, 7, 6, 5, 4, 7 Calculate the sample variance,...

n = 8

measurements: 5, 3, 6, 7, 6, 5, 4, 7

Calculate the sample variance, s2, using the definition formula. (Round your answer to four decimal places.)

s2 =

Calculate the sample variance, s2 using the computing formula. (Round your answer to four decimal places.)

s2 =  

Find the sample standard deviation, s. (Round your answer to three decimal places.)

s =

Solutions

Expert Solution

Calculate the sample variance, s2, using the definition formula.

5 -0.375 0.140625
3 -2.375 5.640625
6 0.625 0.390625
7 1.625 2.640625
6 0.625 0.390625
5 -0.375 0.140625
4 -1.375 1.890625
7 1.625 2.640625

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Calculate the sample variance, s2 using the computing formula.

5 25
3 9
6 36
7 49
6 36
5 25
4 16
7 49

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Find the sample standard deviation, s.

orchestra answered 3 years ago
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