(Solved) The brightness of a television picture tube can be evaluated by measuring the amount of current required to achieve a particular brightness level.
Question: The brightness of a television picture tube can be evaluated by measuring the amount of current required to achieve a particular brightness level. A sample of 10 tubes results in \(\bar{X}=317.2\) and \(s=15.7\). Find (in micro amps) a 99% confidence interval on the mean current required. State any necessary assumptions about the underlying distribution of the data.
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