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Historically, the mean time to find a parking spot at Joliet Junior College is 5.2 minutes. After reconfiguring the parking lots, the administration wondered whether the time to find a parking spot decreased. (a) What is the variable of interest in this study? Is it qualitative or quantitative? Explain. (b) Decide which test should be used to determine if the time to find a parking spot decreased. Choose from the following: (1) Hypothesis test for a population mean (2) Hypothesis test for a single proportion (3) Hypothesis test for two independent means (4) Hypothesis test for two dependent means (5) Hypothesis test for two independent proportions BIUST E X' Insert Formula