# Comparison of Mean: Student's t test

See the attached file.

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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#### Solution Preview

Please see the attached file.

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 α=.05, test the clan that there was no difference in the rents.

Answer

The null hypothesis tested is

H0: The mean rent = 17.63

H1: The ...

#### Solution Summary

The solution gives the details of students t test for comparing the mean with a standard value. The details of Z test for comparing the population proportion is also given.