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rev: 04_17_2012 Solution a) two tailed test b)reject H0 if z is out of interval(-1.65, 1.65) c)test value=101-99.3/(sqrt(4.6^2/40+4^2/47))=1.59 d)we fail to reject H0 e) p value=0.1130.

Formation

Solution
a) two tailed test
b)reject H0 if z is out of interval(-1.65, 1.65)
c)test value=101-99.3/(sqrt(4.6^2/40+4^2/47))=1.59
d)we fail to reject H0
e) p value=0.1130

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