Ages of Robbery Victims A recent study in a small city
Chapter 8, Problem 21(choose chapter or problem)
Ages of Robbery Victims A recent study in a small city stated that the average age of robbery victims was 63.5 years. A sample of 20 recent victims had a mean of 63.7 years and a standard deviation of 1.9 years. At \(\alpha = 0.05\), is the average age higher than originally believed? Use the P-value method.
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