(Solution) - The National Club Association does periodic studies on issues important -(2025 Original AI-Free Solution)

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The National Club Association does periodic studies on issues important to its membership. The 2008 Executive Summary of the Club Managers Association of America reported that the average country club initiation fee was $31,912. Suppose a random sample taken in 2009 of 12 country clubs produced the following initiation fees:

Based on the sample information, can you conclude at the ? = 0.05 level of significance that the average 2009 country club initiation fees are lower than the 2008 average? Conduct your test at the ? = 0.05 level of significance.