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The Tennis Industry Association stated that the average age of a tennis fan is 32 years old. To test the claim, a researcher selected a random sample of 18 tennis fans and found that the mean of their ages was 31.3 years and that the standard deviation was 2.8 years. At a=0.05 does it appear that the average is lower than what was stated by the Tennis Industry Association? Use the P-Value method, and assume that the variable is approximately normally distributed.

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