Question: The 20% Winsorized standard deviation (sw) for the first group in Table 7.6 is 1.365 and for the second group it is 4.118. Verify that

The 20% Winsorized standard deviation (sw) for the first group in Table 7.6 is 1.365 and for the second group it is 4.118. Verify that the 0.95 confidence interval for the difference between the 20% trimmed means, using Yuen’s method, is (5.3, 22.85).

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