(A).
99.94% confidence intervalis wider than 90% confidence interval .
Consider z test
For 90% confidence, =1-.90=0.10,
/2
=0.05
Z/2 =1.96
For 99.94% confidence,=1-0.994=0.006,
/2=0.003
Z/2=2.748
Confidence interval
X+-Z/2(
/√n)
Hence,after the calculation we can show that 99.94% confidence interval is more wider than 90% confidence interval.
(B) . Null hypothesis Ho: =
o
Alternative hypothesis Ha:<
o or
>
o (for one
tailed test)
Null hypothesis Ho : ,=
o
Alternative hypothesis Ha :o (for two tailed
test).
Test statistic Z=(x- o)/(
/√n)
P value =1-p(z). For one tailed test
P value =2(1-p(z)) for two tailed test.
Reject Ho if p Value < .
Not reject Ho if p value>.
S. Would 0/. Coh Eidnce interal btnaue of wic eps invlved in Cheir teshn
5) Predict the product(s) of the following reaction. IL II COH COH A
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