Increased blood vessel formulation is a predictive factor in survival for a certain disease. One treatment is stem cell transplantation with the​ patient's own stem cells. The accompanying data table represents the microvessel density for patients who had a complete response to the stem cell transplant. The measurements were taken immediately prior to the stem cell transplant and at the time the complete response was determined. Complete parts​ (a) through​ (d) below. c. Construct and interpret a 95​% confidence interval estimate of the mean difference in microvessel density before and after the stem cell transplant. ____≤μD≤____   I am struggling to how to construct the 95​% confidence interval estimate of the mean difference in microvessel density before and after the stem cell transplant? Can show me what excel formal or PHstat I am supposed to use be very detail because I really dont know and I am confused? Which  confidence interval I am supposed to use? And what I am supposed input in there? How would it look?

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