Use the sample information

to caculate the following confidence intervals for assuming the sample is from a normal population.

X = 36,

= 5,

n = 12

(a) 90 percent confidence. (Round your answers to 4 decimal places.)

The 90% confidence interval is from ___________ to _______________

(b) 95 percent confidence. (Round your answers to 4 decimal places.)

The 95% confidence interval is from______________to_____________

(c) 99 percent confidence. (Round your answers to 4 decimal places.)

The 99% confidence interval is from__________________ to_________________

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