For many years TV executives used the guideline that 30 percent of the audience were watching each?

In time the major networks and 10 percent were watching cable stations on a weekday night. A random sample of 500 spectators in the Tampa-St. Petersburg, Florida, area last Monday night in the Tampa-St. Petersburg, Florida, area last Monday showed that 165 homes were in line with the ABC affiliate, 140 CBS affiliate, 125 to the subsidiary of NBC, and the rest was watching a cable channel. In the .05 level of significance, it can be concluded that the guideline is still reasonable?

Not really. What about Fox? That's not a cable channel with programs such as the bones and the House, they do attract good numbers, and

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