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STAT 235, ASAP please. 21 Suppose that a random sample of size n = 4 was taken from a normal population with a standard deviation

STAT 235, ASAP please. 21
Suppose that a random sample of size n = 4 was taken from a normal population with a standard deviation of 5.221. Based on this sample, a confidence interval for the population mean was 12.600 + 8.066. What was the (approximate) confidence level? 98.0% 99.9% 95.0% 99.0% O 99.8% Last saved at 14:15:06

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