uestion Completion Status QUESTION 1 A simple random sample of 50 items resulted in a sample mean of 80. The population standard deviation is equal to 15 1. For computing the critical value, should you use the Z (standard normal) distribution or the distribution? Enter Z or t. 2. What is the critical value if you want 92% confidence level? (Round to 2 decimals) 3. Use the critical value computed in the above question (the value rounded to 2 decimals) and compute the 92% confidence interval for the estimate of population mean. Round your answers to two decimal places. I ) Enter the Lower Confidence Level in the first box and the Upper Confidence Level in the second box. Follow this order for all confidence interval questions Assume that the same sample mean of so was obtained from a sample of 100 items. Use the same population standard deviation of 15. 4. Use the same critical value computed above (the value rounded to 2 decimals) and compute the 92% confidence interval for the estimate of population mean. Round your answers to two decimal places. > 5. What is the effect of a larger sample size on the interval estimate? Larger sample provides a margin of error (Enter larger or smaller") QUESTION 2