# Paired T test

The following data represent a sample of 7 patients who had a complete response to a stem cell transplant as measured by blood and urine tests. Two measurements were taken: the first immediately prior to the stem cell transplant, and the second at the time of the complete response.

Patient 1 2 3 4 5 6 7

Before 158 189 202 353 416 426 441

After 284 214 101 227 290 176 290

Perform an appropriate test of hypothesis to determine if there is evidence, at the .05 level of significance, to support the claim that the mean bone morrow microvessel density is higher before the stem cell transplant than after the stem cell transplant? What is the value of the sample test statistics?

What is the p-value associated with the test of hypothesis you conducted?

At the .01 level of significance, is there sufficient evidence to conclude that the mean bone marrow microvessel density is higher before the stem cell transplant than after the stem cell transplant?

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#### Solution Summary

The solution contains a testing of hypothesis problem using paired t test.