Each bound should be rounded to three decimal places.
A random sample of ?=100 observations produced a mean of ?⎯⎯⎯=32with a standard deviation of ?=4
(a) Find a 95% confidence interval for ?μ
Lower-bound:Â Â
Upper-bound:
(b) Find a 90% confidence interval for ?μ
Lower-bound:Â Â
Upper-bound:
(c) Find a 99% confidence interval for ?μ
Lower-bound:Â Â
Upper-bound:
