give a example 0f a measurment error .describe a situation in which it might occur and...

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Advance Math

give a example 0f a measurment error .describe a situation inwhich it might occur and why is poses a problem for statistic ifthe sample size increases and everything els remains the same ,inwhat will the confidence change?

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Measurement Error also called Observational Error is the difference between a measured quantity and its true value It includes random error naturally occurring errors that are to be expected with any experiment and systematic error For example lets say you were measuring the weights of 100 marathon athletes The scale you use is one pound off this is a systematic errorthat will result in all athletes body weight calculations to be off by a pound On the other hand lets say your scale was accurate Some athletes might be more dehydrated than others Some might have wetter and therefore heavier clothing or a 2 oz candy bar in a pocket These are random errors and are to be expected In fact all collected samples will have random errors they are for the most part unavoidable When discussing the statistical properties of an exam one may hear the term error or measurement error used by psychometricians Error can be considered information contributing to a persons exam score beyond the persons true or actual ability So from computational and classical test theory perspective error is E O Tor Error Observed True The Observed score is the actual score on the exam See Answer

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