Use the sample information x¯ = 36, σ = 6, n = 11 to calculate the following confidence intervals for μ 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 ?
Use the sample information x¯ = 36, σ =
6, n = 11 to calculate the following confidence intervals for μ 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 ?
(d) Describe how the intervals change as you increase the confidence level.