(a) For t=2.248, should you reject or fail to reject the null hypothesis?
A.
Reject
H0,
because
t<>
B.
Fail to reject
C.
t>−2.179.
D.
(b) Fort=0,should you reject or fail to reject the null hypothesis?
(c) For t=−2.158, should you reject or fail to reject the null hypothesis?
(d) For t=−2.254, should you reject or fail to reject the null hypothesis?
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