Question

Consider the following set of data: 15, 20, 21, 20, 36, 15, 25, 15. a. What...

Consider the following set of data: 15, 20, 21, 20, 36, 15, 25, 15.

a. What is the skewness of the data?

b. What is the kurtosis of the data?

c. What is the excess kurtosis?

Math   Statistics-And-Probability   
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Answer #1
xi X-bar (xi-x-bar)^4 (xi-xbar)^2
15 20.875 1191.328369 34.515625
20 20.875 0.586181641 0.765625
21 20.875 0.000244141 0.015625
20 20.875 0.586181641 0.765625
36 20.875 52333.71118 228.76563
15 20.875 1191.328369 34.515625
25 20.875 289.5314941 17.015625
15 20.875 1191.328369 34.515625
167 167 56198.40039 350.875 Total

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