matchedtdata - Matched pairs t test example data Kacprzak...

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Unformatted text preview: Matched pairs t test example data Kacprzak and Chvojka (1976) compared two methods of measuring mercury levels in fish: the selective reduction method, and the permanganate method. The selective reduction method has certain advantages in comparison to the permanganate method. Both methods were applied to 25 juvenile black marlin fish, with measurements summarised in table 34. Table 34: Different measures of mercury levels in juvenile marlin Fish Selective reduction Permanganate Difference 1 0.32 0.39-0.07 2 0.40 0.47-0.07 3 0.11 0.11 0.00 4 0.47 0.43 0.04 5 0.32 0.42-0.10 6 0.35 0.30 0.05 7 0.32 0.43-0.11 8 0.63 0.98-0.35 9 0.50 0.86-0.36 10 0.60 0.79-0.19 11 0.38 0.33 0.05 12 0.46 0.45 0.01 13 0.20 0.22-0.02 14 0.31 0.30 0.01 15 0.62 0.60 0.02 16 0.52 0.53-0.01 17 0.77 0.85-0.08 18 0.23 0.20 0.03 19 0.30 0.33-0.03 20 0.70 0.57 0.13 21 0.41 0.43-0.02 22 0.53 0.49 0.04 23 0.19 0.20-0.01 24 0.31 0.35-0.04 25 0.48 0.40 0.08 1-0.3-0.2-0.1 0.0 0.1 B o x p lo t Difference in mercury levels- 1...
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matchedtdata - Matched pairs t test example data Kacprzak...

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