The North Carolina Department of Transportation has claimed that at most, 18 percent of passenger cars exceed 70 mph on Interstate 40 between Raleigh and Durham. A random sample of 300 cars found 48 cars exceeding 70 mph. What is the prob value for a test of hypothesis seeking to show the NCDOT’s claim is correct?

The North Carolina Department of Transportation has claimed that at most, 18 percent of passenger cars exceed 70 mph on Interstate 40 between Raleigh and Durham. A random sample of 300 cars found 48 cars exceeding 70 mph. What is the prob value for a test of hypothesis seeking to show the NCDOT’s claim is correct?

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