Suppose pizza deliver}:r times are normally distributed. The population standard deviation is six minutes and the same mean deliver time is 36 minutes. Use a sample size of 20. Find a 95% condence interval estimate for the true mean pizza delivery time. Fill in the blank and round to two decimal places: II . l Suppose pizza delivery times are normally distributed. The population standard deviation is 4 minutes and the same mean deliver time is 36 minutes. Use a sample size of 58. Use a 95% confidence interval for the true mean for pizza delivery times. Calculate the EBM. Round to 2 decimal places