Questions 8 - 10 A sample of 300 peak electrical loads for consumers of Heysham Power are distributed among three periods as follows: Period Period definition 1 2:00 AM - 10:00 AM 2 10:00 AM - 6:00 PM 3 6:00 PM - 2:00 AM Loads 80 90 130 Table 1: Electrical loads at different times To test the hypothesis that the loads are uniformly distributed among the periods, an analyst decides to use a chi-squared hypothesis test Q8. Let P. P and pz be the true proportions of loads in period 1, 2, and 3. Which of the following should be his hypotheses statements? A. Ho: P = P2 = p) = }; H.: P.or P2 # for pz + } B. Ho: p1 = P2 = p; = ; H.: P. # or P2 # or p C. H : P1 = 5 - 7 - 1 - Phi or P. or p = 0 D. H.: P = 0.20 Page 4.1 4433 - +0+ or P2 # 0.3 or P3 +0.433 E. None of the above 8 13