For each confidence level in the table below, determine the right-tail area ((1/2) and the corresponding critical zvalue (20/2). Report right-tail area as decimal (not percent) accurate to 4 decimal places. Report (positive) critical values accurate to 2 decimal places. Confidence Level 75.8% Right Tail Area (ul2) Critical Value (qu2) 82.3% 90.9% BUD DUB The results show that the smaller the confidence level, the larger area, and the smaller v ~/ I the critical value. A study is conducted to estimate the mean completion time of a task to within 2 minutes 36 seconds of the population mean. Suppose completion time is normally distributed with a standard deviation of 6 minutes 33 seconds. What minimum sample size is required at the 89.9% confidence level? You must use a critical 2 value rounded to two (2) decimal places. Do not round other intermediate results. Report final answer as an integer. Minimum sample size required = Question Help: El Video Check