Use the sample information

_

x= 36, = 7, n = 16 to calculate the following confidence intervals for assuming the sample is from a normal population.

(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