Think about a population proportion that you may be interested in and propose a hypothesis test problem for this parameter. Gather appropriate data and post your problem.

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For example, you may believe that the population proportion of adults in the US who own SUVs is 0.25. Your data could be that you surveyed people leaving work at the end of the day and found that 13 out of 50 owned an SUV. Test this hypothesis at the .05 (or another) significance level. Assume a random sample.