Why is confidence interval so much shorter

Reference no: EM131398795

1. Repeat the last exercise, only now Winsorize 20% by setting the argument win to .2. Verify that the .95 confidence interval is now (7.67, 14). Why is this confidence interval so much shorter than the confidence interval in the last exercise?

2. For the confidence interval obtained in the last exercise, what practical problem might have occurred regarding probability coverage?

Reference no: EM131398795

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