Question: 3. A random variable X is distributed as a normal principal with an unknown expected value m and the given standard deviation -3. The

3. A random variable X is distributed as a normal principal with

3. A random variable X is distributed as a normal principal with an unknown expected value m and the given standard deviation -3. The calculated empirical expected value of a given 36 element sample is X = 4,1. Calculate the confidence interval of the expected value m with a confidence level of 0,95.

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