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Statement of a problem № m1151

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The production manager of MPS Audio Systems Inc. is concerned about the idle time of workers. In particular, he would like to know if there is a difference in the idle minutes for workers on the day shift and the evening shift. The information below is the number of idle minutes yesterday for the five day-shift workers and the six evening-shift workers. Use the .05 significance level. Day Shift Evening Shift 92 ............ 96 103 ............ 114 116 ............ 80 81 ............ 82 89 ............ 88 91




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