Ezra's mother told her she was "moving at a snail's pace." how could ezra determine the average speed of a snail? a she can subtract the snail's density from the time it takes for it to cover a set distance. b she could divide a set distance by the time it takes the snail to move that distance. c she could add together the times it takes the snail to cover several set distances. d she could multiply the snail's mass by the time it takes it to cover a set distance.

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?