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Note: Each bound should be rounded to three decimal places. A random sample of ?=100 observations...

Note: Each bound should be rounded to three decimal places.

A random sample of ?=100 observations produced a mean of ?=26  with a standard deviation of ?=5

(a) Find a 99% confidence interval for ?
Lower-bound:___ Upper-bound:___

(b) Find a 90% confidence interval for ?
Lower-bound:___ Upper-bound:___

(c) Find a 95% confidence interval for ?
Lower-bound: ___ Upper-bound:____

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