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# The average age for licensed drivers in a county is = 42.6, = 12 and the distribution is approximately normal.

The average age for licensed drivers in a county is µ= 42.6, σ= 12 and the distribution is approximately normal. A county police officer was interested in whether the average age of those receiving parking tickets in the county differed from that of the average age of the population of licensed drivers in the county. She obtained a random sample of N = 25 drivers in the county, who received parking tickets. The average age for these drivers was M= 40.5. Test using a 5% (α=.05) significance level.

1. Identify the appropriate hypothesis test for analyzing this data.