Tag Likelihood ratio

diagnostic tests

All that glitters is not gold

Assessment of diagnostic tests A brother-in-law of mine is very concerned with a dilemma he’s gotten into. The thing is that he’s going to start a small business and he wants to hire a security guard to stay at the…

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potencia y tamaño muestral

Size and power

Power and sample size Two associated qualities. And very enviable too. Especially when it comes to scientific studies (what were you thinking about?). Although there’re more factors involved, as we’ll see in a moment. Let’s suppose we are measuring the…

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