Nielsen Research provides weekly ratings of nationally broadcast television programs. The ratings of the 84 prime-time programs broadcast by the four major televisions networks (ABC, CBS, FOX, and NBC) for the week of April 14-20, 2008, are provided in the file named Nielsen Research. The ratings range from 1 to 103. Shown are the ratings for 12 shows in the file (days and times for shows that aired multiple episodes are shown). Do these data suggest that the overall ratings for the four networks differ significantly? Use the Kruskal-Wallis test with a .10 level of significance. What is the p-value and what is your conclusion?

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Rating 60 Program 20/20 30 Rock 48 Hours Mystery (Sat. 10:00 P.M) 48 Hours Mystery (Sat. 9:00 P.M) 48 Hours Mysterry (Tues. 10:00 P.M) 60 Minutes According to Jim (Tues. 8:00 P.M) According to Jim (Tues. 8:30 P.M) American Dad (Sun. 7:30 P.M) American Dad (Sun. 9:30 P.M) American Idol (Tues. 8:00 P.M) American Idol (Wed. 9:00 P.M) Network ABC NBC CBS CBS CBS CBS ABC ABC FOX FOX FOX FOX 51 78 63 89 91 100 65