Find a confidence interval for μ assuming that each sample is from a normal population. a. x¯ = 14, σ = 4, n = 5, 90 percent confidence b. x¯ = 37, σ = 5, n = 15, 99 percent confidence c. x¯ = 121, σ...

Find a confidence interval for μ assuming that each sample is from a normal population.

a. x¯ = 14, σ = 4, n = 5, 90 percent confidence

b. x¯ = 37, σ = 5, n = 15, 99 percent confidence

c. x¯ = 121, σ = 15, n = 25, 95 percent confidence