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Listed below are systolic blood pressure measurements (mm Hg) taken from the right and left arms of the same woman. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Use a 0.01 significance level to test for a difference between the measurements from the two arms. What can be concluded?
Right arm
152
133
140
130
130
Left arm
183
178
184
137
152
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Part 1
In this example, mu Subscript d is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the measurement from the right arm minus the measurement from the left arm. What are the null and alternative hypotheses for the hypothesis test?
A.
Upper H 0: mu Subscript dnot equals0
Upper H 1: mu Subscript dgreater than0
B.
Upper H 0: mu Subscript dequals0
Upper H 1: mu Subscript dless than0
C.
Upper H 0: mu Subscript dequals0
Upper H 1: mu Subscript dnot equals0
D.
Upper H 0: mu Subscript dnot equals0
Upper H 1: mu Subscript dequals0
Sagot :
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