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# Comparison of Mean: Student's t test

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The average annual rent for office space in Tampa was 17.63 per square foot. A real estate agent selected a random sample of 15 rental properties and found that the mean rent was 18.72 per square foot, and the standard deviation was 3.64. At ?=.05, test the clan that there was no difference in the rents.

A report by the NCAA states the 57.6% of football injuries occur during practices. A hear trainer claims that the actual number is less than what the MCAA states so that he randomly selects 36 injuries and find that 17 occurred during practices.

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The average annual rent for office space in Tampa was 17.63 per square foot. A real estate agent selected a random sample of 15 rental properties and found that the mean rent was 18.72 per square foot, and the standard deviation was 3.64. At Î±=.05, test the clan that there was no difference in the rents.