Question
A pharmaceutical company claims that its new drug reduces systolic blood pressure. The systolic blood pressure (in millimeters of mercury) for nine patients before taking
A pharmaceutical company claims that its new drug reduces systolic blood pressure. The systolic blood pressure (in millimeters of mercury) for nine patients before taking the new drug and 2
2 hours after taking the drug are shown in the table below. Is there enough evidence to support the company's claim?
Let d=(bloodpressurebeforetakingnewdrug)(bloodpressureaftertakingnewdrug)
d=(bloodpressurebeforetakingnewdrug)(bloodpressureaftertakingnewdrug). Use a significance level of =0.01
=0.01 for the test. Assume that the systolic blood pressure levels are normally distributed for the population of patients both before and after taking the new drug.
Patient123456789Blood pressure (before)192
197
193
182
154
164
164
195
202
Blood pressure (after)177
182
187
175
143
153
158
181
194
Step1of5:State the null and alternative hypotheses for the test.
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