Question

Migraines (recurrent headaches that are moderate to severe) can be accompanied by a range of symptoms, one of which is an aura - a series of sensory disturbances, often characterized by flashes of light, blind spots, or a tingling sensation in the face or hands. Researchers gave a new medication to a random selection of 6 migraine patients and the length of symptoms (measured in minutes) was recorded for an attack before the medication (ui) and for an attack after the medication (uz). The results appear below: 1 2 6 Patient Before medication After medication 87 126 3 4 5 64 139 71 47 104 99 82 70 105 68 Calculate the value of the test statistic the researchers would use to test their claim that the new medication reduces the average length of migraines with aura symptoms. If needed, you may assume that the length of symptoms both before and after being given the medication follows a normal distribution. Give your answer accurate to 3 decimal places. Answer:

Answer 1

0 Here, given data as, 26 patient Before After medication medication (9) d=x-y - 70 IH 87 126 2 los 21 3 64 It 47 104 4 35 139 7 5 9g - 28 6. 82 14 68 So, a 3d = 78 6 f = 13.1887 व = 12.6667 Sd = (d² - na 17 6(3224 3224 -962: 6717 452.26566 find, Sd = 21. 2665 Value of Lest ta व statistic, sd to 12.6667 21.2665 56 1.4589 1.459 Ans. It =