QUESTION 20 Great white sharks are big and hungry. The following is a list of the lengths of a sample of these sharks. Put these in your graphing calculator. 18.7, 12.3, 18.6, 16.4, 15.7, 18.3, 14.6, 15.8, 14.9, 17.6, 12.1, 16.4, 16.7, 17.8, 16.2, 12.6, 17.8, 13.8, 12.2, 15.2, 14.7, 12.4, 13.2, 15.8, 14.3, 16.6, 9.4, 18.2, 13.2, 13.6 You can either use your graphing calculator or statkey the first column, one quantiative variable. Use the edit button. The first row delete one of the words and comma. Delete the material. Unclick the first square at the bottom labeled first column is identifyer. Assume for answers that the first square is A, the second square is B and so on. A. What is the mean and standard deviation? Round to two decimal places. Have answer in form mean and S.D. Example answer: 123.25 and 1899.98 B. Report the 5 number summary. Separate by commas and round to one decimal place. Example answer. 1.1, 23.5, 66.5, 78.9, 99.7 C. Find the z-score if we come up with an observation of a white shark length 25. Use the mean and standard deviation you originally found. Round answer to 3 decimal places. Use this formula for z-score z-(x-xbar)/(s) D. Using the mean and standard deviation find a 95% confidence interval. Use z* = 2. Round to 2 decimal places. Report answer. to Example answer 12.34 to 1000.78