answer all please

23 - Section 6.2 Inference for a Mean Question 11 of 21 - /1 View Policies Current Attempt in Progress What sample size is needed to give a margin of error within + 0.6 in estimating a population mean with 95% confidence, assuming a previous sample had s = 24. Round your answer up to the nearest integer. sample size = e Textbook and Media Save for Later Attempts: 0 of 4 used Submit Answer6 23 - Section 6.2 Inference for a Mean Question 12 of2'l -.' 1 View Policies Current Attempt in Progress Forest Fires in Portugal A study of forest res in Portugal1 looked at the effect of many variables on the area of forest that is burned by the re. The study included 517 forest res and found a mean area burned of 12.85 hectares with a standard deviation of 63.66. (The standard deviation is much bigger than the mean because the data is very right-skewed.) Find and interpret a 90% condence interval for the mean area burned by all forest res in Portugal. (The data are available in ForestFires.) 1 Forest Fires Data Set, UCI Machine Learning Repository, https://archive.ic5.uci.ed'u/ml/datasets/Forest+Fires, Accessed February 2020. Condenceintervallround tothreedecimalplaces): a 8.236 to a 11454 Interpretation: v eTextbook a We are 90% condent that the mean area burned for all forest res in Portugal is between those two numbers. Save for Later We are condent that 90% of the forest res in this sample burn an area within those two numbers. We are 90% condent that the mean area burned for this sample of forest res in Portugal is between those two numbers. We are condent that 90% of forest res in Portugal burn an area within those two numbers. 23 - Section 6.2 Inference for a Mean Question 10 of21 4'1 View Policies Current Attempt in Progress What sample size is needed to give a margin of error within i 3 in estimating a population mean with 90% condence, assuming a previous sample had S = 18. Round your answer up to the nearest integer. sample size = n eTextbook and Media Save for Later Attempts: 0 of 4 used