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Uploaded: 17.12.2012
Content: 12.doc (25 kB)


The task.
When measuring the race at 100 meters from the two groups of students results were obtained:
Group 1: 14.0 with an average value; standard deviation of 3;
Group 2: 14.7 with an average value; standard deviation of 4.
Determine the significance level α = 0,01, whether the results of the first better than the second group, if each group of 100 people?


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