A sample of size n= 14 has a sample mean x= 11.9 and sample standard deviation s = 2.1. It is reasonable to assume that the population is approximately normal. Construct a interval for the population mean u. 99% confidence O (10.4, 13.4) O (10.2, 13.6) D (10.7, 13.1) D (11.4, 12.4) Multiple choice question. Construct 99% confidence Interval.

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