What is the life span of a lab mouse? You have measured the followinglife spans (in days) for a certain standard inbred laboratory strain.

743, 538, 1262, 957, 696, 972, 754, 794, 494, 829, 863, 867, 1166, 774, 742, 910, 674, 204, 625, 777

Calculate the critical valuet*for a 90% two-sided confidence interval. Round your answer to the nearest 0.0001.

What is the life span of a lab mouse? You have measured the followinglife spans (in days) for a certain standard inbred laboratory strain.

743, 538, 1262, 957, 696, 972, 754, 794, 494, 829, 863, 867, 1166, 774, 742, 910, 674, 204, 625, 777

Calculate the margin of errormfor a 90% two-sided confidence interval. Round your answer to the nearest 0.0001.

What is the life span of a lab mouse? You have measured the followinglife spans (in days) for a certain standard inbred laboratory strain.

743, 538, 1262, 957, 696, 972, 754, 794, 494, 829, 863, 867, 1166, 774, 742, 910, 674, 204, 625, 777

Calculate the lower bound of the 90% lower-bound confidence interval. We can be 90% confident that the mean life span of the lab mouse is more than a days.

What is the value of a? Round your answer to the nearest 0.0001.

What is the life span of a lab mouse? You have measured the followinglife spans (in days) for a certain standard inbred laboratory strain.

743, 538, 1262, 957, 696, 972, 754, 794, 494, 829, 863, 867, 1166, 774, 742, 910, 674, 204, 625, 777

Calculate the upper bound of the 90% lower-bound confidence interval. We can be 90% confident that the mean life span of the lab mouse is less than b days.

What is the value of b? Round your answer to the nearest 0.0001.