2-6. Transform the following collection of sample observations into a set of Z-scores: 2, 11, 22, 25,

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2-6. Transform the following collection of sample observations into a set of Z-scores: 2, 11, 22, 25, 26, 22, 25, 27, 32, 40. Are any of the data values outliers? Find the 20% trimmed mean. What are the second and third level Winsorized means?

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