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Problem # 6: An observational study of Alzheimer's d ease (AD) obtai-d data from 9 AD patients
exhibiting moderate dementia andelected oup of 7CO iol individyals athout ADAAD a progressive
arodegeneratue V A C (b) Find the value of the test statistic. (A) H0:1<2 (B) H0:1=2 (C) H0:12 (D)
H0:1>2 (E) H0:1=2 (F) H0:12 a) null hypothesis H0:1=2)H1:1=2 b) test statistic: test if ave age is
significantly different. than control. t=n1s12+n2s22(x1x2)(12)

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