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The following information was obtained from matched samples taken from two populations The daily production...

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The following information was obtained from matched samples taken from two populations The daily production rates for a sample of workers before and after a training program are shown below Assume the population of differences is normally distributed Worker Before 00 O 1 00 1 77 1 2 3 4 5 6 7 21 26 28 24 23 21 18 After 23 24 28 21 26 20 19 The point estimate for the difference between the two population means is 0 The null hypothesis to be tested is Ho 0 Find the test statistic O 1 96

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