Listed below are global mean temperatures (°C) of the earth for 50 re¬cent and consecutive years (based on data from the Goddard Institute for Space Studies). Test for randomness above and below the mean. What do the results suggest about global warming?

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13.98 14.10 14.05 14.03 13.65 13.75 13.93 13.98 13.9 14.00 14.04 13.90 3.95 14.18 13.94 13.98 13.79 14.16 14.07 14.13 14.27 14.40 14.10 14.34 14.16 14.13 14.19 14.35 14.42 14.28 14.49 14.44 14.16 14.18 14.31 14.47 14.36 14.40 14.71 14.44 14.41 14.6 4.70 14.64 14.60 47 14.64 14.66 14.68 14.70