The brightness of a television tube can be evaluated by measuring the amount of current required to achieve a particular brightness level. A sample of 25 tubes results in x̅= 450.5 and s = 21.6. Find (in microamperes) a 99% confidence interval on the mean current required
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The brightness of a television tube can be evaluated by measuring the amount of current required to achieve a particular brightness level. A sample of 25 tubes results in x̅= 450.5 and s = 21.6. Find (in microamperes) a 99% confidence interval on the mean current required.
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