The production manager of MPS Audio Systems Inc. is concerned about the idle time of workers. In

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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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