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Use the sample information x¯ = 43, σ = 3, n = 11 to calculate the...

Use the sample information x¯ = 43, σ = 3, 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 41.5120 to 44.4880 (b) 95 percent confidence. (Round your answers to 4 decimal places.) The 95% confidence interval is from to

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