Question 758602
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	44
After	284	214	101	227	290	176	290
Dif(A-B)-126     -25      101      126      126     250      151
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mean of Dif: 86.14
std of Dif:: 123.7    

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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Ho: ud = 0
H1: ud > 0 (claim)
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t(86.14) = (86.14/[123.7/sqrt(7)) = 1.8424
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p-value = P(t > 1.8424 when df = 6) = tcdf(1.8424,100,6) = 0.0575
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Conclusion: Since the p-value is greater than 1%, fail to reject Ho at
the 1% level of significance.


Ans:: No
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Cheers,
Stan H.
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