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A study of medical utilization compares mean stay in the hospital for heart transplant operations in 2009 to the mean stay in 1995, for two
A study of medical utilization compares mean stay in the hospital for heart transplant operations in 2009 to the mean stay in 1995, for two separate samples of such operations in the two years. In the comparison, since the same variable ("length of stay in the hospital") is measured for each sample, the data should be analyzed using methods for dependent samples (such as the paired-difference t test) rather than independent samples. Is this False?
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