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Thus, a visual acuity of unity indicates a power of resolving detail subtending one minute of arc at the eye; a visual acuity of two indicates a resolution of one-half minute, or 30 seconds of arc.
Our power analysis, based on a standard deviation of 88 seconds, α = 0.05 and 10 subjects in each group indicates a power of 86% (β = 0.14) to detect a 120 second difference in endurance time between the two groups after 3 months.
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Simulations indicated a power of 1.000 and 0.918 to discriminate unrelated from full sib and half sib, respectively.
This may have led to an underestimation of interaction effects, as power analyses indicated a power of only 20% to detect small interaction effects.
Power calculation based on the dichotomization of CPQ described above, determined the sample size to 400 patients and indicated a power of >80% to detect a relative risk of 1.2-1.3 1.2-1.3linically important improvement in pain or in disability.
Retrospective power calculations (a = 0.05) using the values observed above indicate a power of 0.91 and a power of 0.88 for the changes observed in HOMA (Δ6 m for N+IR = 0.49, for O+IR = 0.11, common St.D. = 0.26) and QUICKI (Δ6 m for N+IR = 0.04, for O+IR = 0.01, common St.D. = 0.02), respectively.
This is shown for the current example in Fig. 5, in which a (solid) line is drawn between a standardized difference of 0.188 and an approximate sample size of 861, and is extended (dashed line) to indicate a power of around 79%.
This design indicates a power dissipation of only around 0.09 μW using a 0.8 V supply voltage, and, is suitable for applications such as RFID tags and smart cards which require low power consumption with a small silicon die.
A linear fit to the double-logarithmic plot indicates a power law for the mass dependence of the most probably velocity v ∝ m 0.42±0.06.
Theoretical models of the Sun's interior indicate a power density of approximately 276.5 W/m3, a value that more nearly approximates reptile metabolism than a thermonuclear bomb.
The results of the sensitivity analyses of the final logistic model showed that the c-statistics were between 0.74-0.77, whindicatesates a fair power of discrimination since the values are between 0.5 and 1.0.
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CEO of Professional Science Editing for Scientists @ prosciediting.com