8.1 Practice Assigirlent: 3.1 Practioe Questions Exercise 133.02 Algo {Population Mean: Sigma Known] .5. simple random sample of u items from a population with o = 9 resulted in a sample mean of 32. If required, round your answers to two decimal placa. 3. Provide a 90% confidence interval For the population mean. E .. E h. Provide a 95% condence interval For the population mean. |:| 13 |:| 1:. Provide a 99% confidence interval For the population mean. Cline