Question: Use the sample information x = 40, o=7, n=13 to calculate the following confidence intervals for / assuming the sample is from a normal population.

Use the sample information x = 40, o=7, n=13 to calculate the following confidence intervals for / 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 ces (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 AUG
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