Retu 4 Use the sample information a = 36, 0 = 7, n= 17 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.) ints 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