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A medical researcher wants to examine the relationship of the blood pressure of patients before and after a procedure. S
Posted: Mon Nov 15, 2021 11:04 am
by answerhappygod
- A Medical Researcher Wants To Examine The Relationship Of The Blood Pressure Of Patients Before And After A Procedure S 1 (42.42 KiB) Viewed 85 times
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A medical researcher wants to examine the relationship of the blood pressure of patients before and after a procedure. She takes a sample of 20 people and measures their blood pressure before undergoing the procedure. Afterwards, she takes the same sample of people and measures their blood pressure again. The researcher wants to test if the blood pressure measurements after the procedure are greater than the blood pressure measurements before the procedure and, thus, the hypotheses are as follows: Null Hypothesis: HD s 0, Alternative Hypothesis: Hp > 0. If the average difference between the before and after blood pressures (calculated as after - before) is 4.5 with a standard deviation of 16.6, what is the test statistic and p-value?
1) Test Statistic: -1.212, P-Value: 0.88 2) Test Statistic: 1.212, P-Value: 0.88 3) Test Statistic: 1.212, P-Value: 0.12 4) Test Statistic: 1.212, P-Value: 0.24 5) Test Statistic: -1.212, P-Value: 0.12