*** *** wants *** *** *** a *** pressure *** *** *** *** *** *** their blood pressures
recorded. After twelve *** on the medication, the *** *** *** *** *** *** *** *** For this *** *** systolic pressure is of *** *** *** *** *** signicance level.
Patient A B *** *** *** *** *** 162 165 *** *** 171
After *** 159 *** 160 167 169 *** blood *** after medication *** blood pressure *** *** *** *** 6 *** *** *** *** y. *** d
= *** *** = 1
:8619 . *** *** *** d-dbar (d-dbar)2
158 *** -3 -1.6667 2.7778
159 162 *** -1.6667 2.7778
166 *** *** 2.3333 *** 162 -2 -0.6667 0.4444
167 *** *** *** 5.4444
169 171 -2 -0.6667 0.4444 *** 1 Hypothesis
The hypothesis testing problem *** H
0:
d = 0
against *** *** *** *** *** *** test statistic is *** d
d s
d= *** n
Step 3 Level of *** signicance level is = *** *** *** *** Critical *** the alternative hypothesis isleft-tailed, the *** *** *** of *** *** 0:01level
of signicance *** *** *** *** *** *** region) is t *** -3.365.
Step *** Computation
1
The test statistic for testing above hypothesis *** problem under *** null hypothesis is
t= ***
d *** p n
= *** *** 1
:8619 *** 6
= 1:7541
Step *** Decision
Traditional *** *** *** is *** *** *** falls outsidethe *** region, we fail *** rejectthe *** hypothesis.
OR
p -value approach:The *** isleft-tailedtest, so p-value is *** *** *** theleftof *** *** statistic *** That is *** P(t 1:7541) = 0 *** *** p-value *** *** *** signicance level of= *** wefail to *** null
hypothesis.
Thus there is no sucient evidence to *** *** *** medication *** ***