QUESTION 4 A random sample has been taken from a normal distribution and the following two confidence intervals were con
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QUESTION 4 A random sample has been taken from a normal distribution and the following two confidence intervals were con
QUESTION 4 A random sample has been taken from a normal distribution and the following two confidence intervals were constructed using the same data: (38.02, 61.98) and (39.95, 60.05) 1. What is the value of the sample mean? 2. One of these intervals is a 95% confidence interval and the other is a 90% confidence interval. Which one is the 95% confidence interval, the first or the second ?