Students of the author collected data measuring the accuracy of wristwatches. The times (sec) below show the
Question:
Students of the author collected data measuring the accuracy of wristwatches. The times (sec) below show the discrepancy between the real time and the time indicated on the wristwatch. Negative values correspond to watches that are running ahead of the actual time. The data appear to be from a normally distributed population. Construct a 95% confidence interval estimate of the mean discrepancy for the population of wristwatches.
-85 325 20 305 -93 15 282 27 555 570 -241 36
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Related Book For 
Mathematical Interest Theory
ISBN: 9781470465681
3rd Edition
Authors: Leslie Jane, James Daniel, Federer Vaaler
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