Answer to Question #121320 in Statistics and Probability for claudia

Question

two instruments have been designed to measure water pressure in a pipeline. One is known to be more accurate than the other but both are subjected to random error . The reading by instrument I and ll are subject to the standard deviations, q and 1.25q respectively . instrument l is used to take 6 independent measurements giving a mean of x , while instrument ll took 10 independent measurements with mean of x2 , suppose the two sample measurement are drawn from a product with mean o and variance o2, show that the estimators x and x2 are unbiased

Answer 1

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