Mathematics, 20.04.2020 21:29 katlynnschmolke
To compare two programs for training industrial workers to perform a skilled job, 20 workers are included in an experiment. Of these 10 are selected at random to be trained by method 1; the remaining 10 workers are to be trained by method 2. After completion of training, all the workers are subjected to time-and-motion test that records the speed of performance of a skilled job. The following data are obtained (time in minutes) :
METHOD 1
15
20 11 23 16 21 18 16 27 24
METHOD 2 23 31 13 19 23 17 28 26 25 28
Is there sufficient evidence to conclude that the average time taken when training under method 1 is less than the average time for Method 2?
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