Listed below are numbers of law enforcement fatalities for 20 recent and consecutive years. First find the mean, identify each value as being above the mean (A) or below the mean (B), then test for randomness above and below the mean. Is there a trend?

Use the runs test with a significance level of α = 0.05. (All data are listed in order by row.)

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183 140 172 171 144 162 241 159 150 165 63 156 192 148 125 161 171 126 107 117