A man took 1.5 hours to drive 108 km from London to Brighton. He used 11.25 litres of petrol. Complete these sentences. (a) His average speed was
km/h.

(b) His petrol consumption was
km/litre.

For part of the journey he drove at an average speed of 104 km/h for 50 minutes.

(c) For the rest of the journey he drove for 40 minutes
at an average speed of
km/h.

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?