Alength of a rope is is stretched between the top edge of a building and a stake in the ground. the head of the steak is at ground level. the rope also touches a tree that is growing halfway between the stake and the building. if the tree is 38 feet tall, how tall is the building?
1: 38ft
2: 19ft
3: 76ft
4: 57ft

The vice president of programming at nbc is finalizing the prime-time schedule for the fall. she has decided to include a hospital drama but is unsure which of two possibilities to select. she has a pilot called the surgeon and another called critical care. to her make a final decision, a sample of 20 viewers from throughout the united states was asked to watch the two pilots and indicate which show they prefer. the results were that 12 liked the surgeon, 7 liked critical care, and one had no preference. state the decision rule, using the 0.10 significance level. h0: π = 0.50 h1: π ≠ 0.50 1. reject h0 if number of + signs is either < = or > = 2. what is your decision regarding h0? is there a preference for one of the two shows?