A travel analyst claims that the mean price of a round trip flight from New York City to Los Angeles is less than $507. In a random sample of 55 round trip flights from New York City to Los Angeles, the mean price is $502. Assume the population standard deviation is $111. At a = 0.05, is there enough evidence to support the travel analyst's claim?

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Q: video game c

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A:

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A:

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