Question: Use the sample information x x = 40, = 3, n = 18 to calculate the following confidence intervals for assuming the sample is from

Use the sample information

x

x

= 40,= 3,n= 18 to calculate the following confidence intervals forassuming 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

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