The t-statistic from comparing the first two columns of ice-off data is 0.958. The IPCC would then conclude, "It is likely that by the year 1894, ice off date was earlier on Lake Mendota in Wisconsin." Hypothesize how likelihood will change over time, based on looking at the graph of ice off data. Run the same analyses to test for differences in ice off date between section 1 and subsequent sections (1 vs. 3, 1 vs. 4 etc...) Enter your results in this table: Which comparison? vs. 2 (1855-1874 vs. 1875-1894) IPCC T Stat 0.958 vs. 3 (1855-1874 vs. 1895-1914) 2.024 extremely likely vs. 4 (1855-1874 vs. 1915-1934) 2.879 virtually certain vs. 5 (1855-1874 vs. 1935-1954) 2.626 virtually certain vs. 6 (1855-1874 vs. 1955-1974) 1.431 very likely vs. 7 (1855-1874 vs. 1975-1994) 3.697 virtually certain vs. 8 (1855-1874 vs. 1995-2014) 3.827 virtually certain 1 Did the level of certainty change over time