For each level of confidencec below, determine the corresponding nomal confidence interval. Assume each confidence interval is constructed for the same sample statistics. 17. c= 0.85 18. c= 0.90 19. c...

Extracted text: For each level of confidencec below, determine the corresponding nomal confidence interval. Assume each confidence interval is constructed for the same sample statistics. 17. c= 0.85 18. c= 0.90 19. c =0.95 20. c=0.98 53.4 58.4 54.1 57.7 53.8 58 x= 55.9 x= 55.9 x 55.9 ++ 52 53 54 55 56 57 58 59 60 52 53 54 55 56 57 58 59 60 52 53 54 55 56 57 58 59 60 54.4 57.4 X 55.9 52 53 -54 55 56 57 58 59 60 Drag each normal confidence interval given above to the level of confidence c. 17. 18. 19. 20.