Trying to encourage people to stop driving to campus, the university claims that on average it takes at least 30 minutes to find a parking space on campus. However, one of the university deans said, "I don't think it takes so long to find a spot. In fact I have a sample of the last five times I drove to campus andl calculated an average of 20." Assuming that the time it takes to find a parking spot is normal, and that the population standard deviation is 6 minutes, solve for the test statistic with level of significance of 0.10. -3.727 7.327 3.727 -7.327

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