There is a new type of drug to alleviate migraines but some have wondered if it...

There is a new type of drug to alleviate migraines but some have wondered if it has some impact on users’ blood pressure. Ten people interested in taking the drug were randomly selected and their blood pressure was measured, and then measured again after using the drug five weeks later. Here are the data. Was there a significant change in blood pressure? Use a two-tailed test with α = .05 (t-Table is on p. 439).

Patient	Before	After
1	120	135
2	117	118
3	119	131
4	130	128
5	121	121
6	105	115
7	128	124
8	114	111
9	109	117
10	120	120

Solutions

Expert Solution

Let us denote the difference

d = blood pressure before - blood pressure after

Conclusion in problem context :

There is a significant change in blood pressure.

orchestra answered 1 year ago

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