Mathematics, 25.02.2021 18:10 nadia74
A medical researcher wishes to determine if a pill has the undesirable side effect of reducing the blood pressure of the user. The study involves recording the initial blood pressures of 15 college-age women. After they use the pill regularly for six months, their blood pressures are again recorded. The researcher wishes to draw inferences about the effect of the pill on blood pressure from the observations given in the following:.
Blood-pressure Measurements Before and After Use of Pill
Subject 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Before(x) 70 80 72 76 76 76 72 78 82 64 74 92 74 68 84
After(y) 68 72 62 70 58 66 68 52 64 72 74 60 74 72 74
Answer the following questions
(i) first Using calculator and then
(ii) using SPss program.
(a) Calculate the 95% confidence interval for the mean reduction in blood pressure
(b) Do the data substantiate the claim that the use of pill reduces blood pressure
Answers: 3
Mathematics, 21.06.2019 14:00
Design a number line containing five (5) points2.benin, one of the smallest countries in africa, has a total area of 43,475 square miles. the population of the country was recently estimated at 10,160,555. about 3,657,790 people live in rural areas. the country has only about 870 miles of surfaced roads. a. round off the total population to the nearest hundred thousand people. b. round off beninβs area in square miles to the nearest thousand. c. round off the number of miles of surfaced roads to the nearest ten. d. round off the number of people who live in rural areas to the nearest million.
Answers: 3
Mathematics, 21.06.2019 21:00
Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2
Answers: 2
A medical researcher wishes to determine if a pill has the undesirable side effect of reducing the b...
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