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Business, 06.05.2020 08:18 am2334

A production manager claims that an average of 50 boxes per hour are filled with finished goods at the final stage of a production line. A random sampling of 48 different workers, at different times, working at the end of identical production lines shows an average number of boxes filled as 47.5 with a standard deviation of 0.7 boxes. Does this evidence support the assertion by the production manager at the 5 per cent level of significance?

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