170135_inorganicventures_flipping

T-test: Form 3

Compares paired data ! " : $% = 0 (mean difference is 0) ( )*+) = ,-. $/ 0 1 , where ̅ 3 =̅ 4 5 −̅ 4 7 and 8 ,- = 0 1 9

Interpretation: If ( )*+) ≤ ( );<= , accept ! " (no statistical difference) If ( )*+) > ( );<= , reject ! " (statistical difference)

Example

! "#$" =̅ ' − )* + ,- = 5.1 − 0 1.7 = 3 ! "456 = 3.182 ! "#$" < ! "456 Accept H o à There is no statistical difference

Before (ppm)

After (ppm)

Diff (ppm)

15.3 12.1 16.4 10.5 13.6

7.2 8.9 8.7 9.1 8.5

8.1 3.2 7.7 1.4 5.1 3.4

Average

Standard Deviation

+ - = + - : = 3.4 4 = 1.7