Math
posted by Theresa .
The Dubuque Cement Company packs 80pound bags of concrete mix. Timestudy data for the filling activity are shown in the following table. Because of the high physical demands of the job, the company's policy is a 23% allowance for workers. a) Compute the standard time for the bagpacking task. b) How many observations are necessary for 99% confidence, within 5% accuracy?

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