North, South Korea Shelling
Nov 23 2010, from BBC reports:
Early reports show plumes of smoke emerging from South Korea's Yeonpyeong island after North Korea fired dozens of artillery shells setting more than 60 houses ablaze, killing two South Korean soldiers and sending civilians fleeing in terror. In the meantime two more deaths have been confirmed.
The attack, which comes days after it emerged that North Korea was pressing ahead with its illegal nuclear programme, marks a serious further escalation of tensions on the Korean Peninsula. The incident is believed to have been sparked by South Korean military exercises in the area, which the North had objected to.
Officials said "dozens" of artillery rounds had landed on Yeonpyeong Island at in the Yellow Sea, 50 miles off the South's northwest coast in an area close to a disputed sea border. Other reports suggested around 200 shells could have been fired in the attack which began at 2.34pm local time (7.34am GMT).
The GCP event was set for 6 hours beginning at the time of the attacks. The result shows Chisquare 21890.196 on 21600 df, for p = 0.082 and Z = 1.393.
It is important to keep in mind that we have only a tiny statistical effect, so that it is always hard to distinguish signal from noise. This means that every "success" might be largely driven by chance, and every "null" might include a real signal overwhelmed by noise. In the long run, a real effect can be identified only by patiently accumulating replications of similar analyses.