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<br />_l <br /> <br />From Table 5-2 these results indicate the snowpack water content for the 1994 <br />water year averaged 24.7 percent more on April I than predicted. The evaluation <br />indicates as well that approximately two and one-half inches (2.53) of additional <br />precipitation may have fallen over the target than was predicted (10.22). The student's <br />t-test (one-tailed) shows results were at a statistical significance of .08, and the u-test <br />shows much the same at .06. It generally takes several years of data (five or more) <br />before the statistics reach a level considered significant (.05). With only one year's <br />worth of data, any results will be inconclusive. The percent of increase indicated at 24.7 <br />for the 1994 water year is considerably higher than the previous year despite the fact that <br />the seeded period was shortened from five months in water year 1993 to two months in <br />1994. The two seeded year numbers indicate an average 19.3 percent increase. The <br />statistical analysis indicates the t-test (one-tailed) for the two years lowers to .04 and the <br />u-test to .02. These tests continue to point in the right direction, but again with only a <br />limited data set (two years) the results should be considered encouraging. <br /> <br />The percentage increase of24.7 for 1994 seems to be excessively large and likely <br />is partially the result of abnormally low precipitation C$. 70 % of normal) observed at the <br />control sites. The target sites and those SCS sites further east had percentages at or <br />slightly above normal. Figure 5.2 shows an isopleth analysis of the percent of normal <br />water content of the April I, 1994 snowpack. Table 5-3 shows the specific numbers for <br />the SCS sites used in this analysis. <br /> <br />5-9 <br />