Tax companies imply that the return they prepare are perfect

Reference no: EM13240876

Tax companies imply that the returns they prepare are perfect, but what proportion of returns from tax companies have mistakes? To answer this question, a random sample of 150 tax returns prepared by tax companies was selected. Among these returns, 42 were found to contain at least one mistake. You may assume the method is valid for this exercise.

Reference no: EM13240876

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