Find each of the following. Enter your answers rounded to at least two decimal places. Part 1 of 5 zu for the 99% confidence interval Part 2 of 5 for the 97% confidence interval Z a/2 Z a/2 = Part 3 of 5 z 2 for the 90% confidence interval Zu/2= Part 4 of 5 zu, for the 95% confidence interval Za/2= Part 5 of 5 Z a/2 for the 86% confidence interval

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