Question: A random sample of70observations produced a mean ofx=36.4from a population with a normal distribution and a standard deviation=3.46 (a) Find a99% confidence interval for: _______________

A random sample of70observations produced a mean ofx=36.4from a population with a normal distribution and a standard deviation=3.46

(a) Find a99% confidence interval for:

_______________

(b) Find a 95% confidence interval for:

_________

Note:Round your answers to 4 decimal places.

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