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Astudent measured the lead content of a paint sample 4 times. the standard deviation of the measurements was found to be 1.5% of the average. calculate the confidence interval at the 90% confidence level. confidence interval: can this student be 90% confident that the true value is within 1.8% of the measured average? o yes o no
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Astudent measured the lead content of a paint sample 4 times. the standard deviation of the measurem...
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