Question: A sample of 16 circuits from a large normal population has a mean resistance of 3.20 ohms. We know from past testing that the population

A sample of 16 circuits from a large normal population has a mean resistance of 3.20 ohms. We know from past testing that the population standard deviation is 0.45 ohms. Determine a 99% confidence interval for the true mean resistance of the population.

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