Question

help! code in Matlab

One of the purposes of an investigation by Porcellini et al. was to investigate the effect on CD4 T cell count of administration of intermittent interleukin (IL-2) in addition to highly active antiretroviral therapy (HAART). The following table shows the CD4 T cell count at baseline and then again after 12 months of HAART therapy with IL-2. Do the data show, at the.01 level, a significant change in CD4 T cell count? (10 pts Subject CD4 T cell count at 173 58 103 18 30 69 entry (X /L CD4 T cell count at end 257 08315 362 549 369 of follow-upL

Answer 1

swer so- Ba seline. Tollowup difference. 173 257 -84 5 8 lo 3 - SO 1o3 3 IS 212 1 81 3 62 0 36 5uq 248 169 369 20 0 DescipH've Statistics diffeve nce Coun mcan -144-4286 somple słan dard deviatian Sampe standaT sample vaviance 7,340,61o

Palved l test Null hypothesis Ho : μ: o Altev nalive hypothesis: H,Ha S To tailedl test used Sol t4 42186 8S 67247 Table value of t with 6 DF aㅏ 0 OS- level: 2.4469 Calculed t:-4.46 falls ?n +he YeJe cha YC ion The nul hypothisis Ps vejeck<d we Canclude thot there s a signtlicalion changen CDLT lll Count

owup Paîred t tes- aiableobs Std. ΕΥγ . Std . Dev.し95% Conf. Mean aselune 1Ss IS S 7143 2929S1 78 6688 829688 223.457 7 300-1429 56.6รา 88 149.9027 161.506 438.7797 d 7-444286 32.3830 8S 6n4 -223 667 - 6S-19ol8 mean Cdif mean CBaselre - ollow u Ho: mean CdHT): o deqyees of frecdom - 6 Calculaled tu46, Po 0ou3 which is 0 oS level Ho s