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1 <br />' AOpendix A - 1998 h f 997 Vegetation Sampling Data <br />' Table A-2 <br />Summary of Cover Data for the Phase I, II, and III and Phase IV Reclaimed <br />Areas <br />Canadian Strip Mine - 1998 Point-Intercept Transects <br /> <br />One sample t-test, 1998 Vegetation Cover Data, Phase IV Reclaimed Area <br />1 Phase IV Reclaimed Area <br />x = 31.33 <br />' s =3.72 v _ <br />~~ ~ s = 1.79 5~ = 3 . ~ ~/~- ~ . q b ~ `x ~C <br />n~ = 15 5 C <br />' Big Sagebrush Reference Area ~ X <br />' z = 30.47 <br />s = 3.40 <br />n = 15 `~~ <br />' (1.) t-test =[(30.47)(0.9) - 31.33)/1.79] _ -2.18 ~~- ~ X G-9~ ^ 3 l .'3 <br />.9b <br />' (2.) to = [a = .10, (n-1) d.f.] = 1.345 <br />Conclusion: The calculated t value of -2.18 < 1.345, the I-)i, is not rejected; and the cover of the <br />' Phase IV area is not less than 90%a of the reference area standard. <br />' One sample t-test, 1998 Vegetation Cover Data, Phase I, II and III Reclaimed Areas <br />Phase I, II, and III Reclaimed Areas <br />x = 28.73 <br />/~ s = 4.61 <br />' lJ -~ sx = 4.15 ~ <br />n = 15 u~d <br />CJ <br /> <br />C4iw I9 ~`~ <br />~;~ S <br />~`',/'kk sl2~ <br /> <br /> <br />A-9 <br />