Mathematics, 15.02.2021 21:00 Serenitybella
To test the effectiveness of an exercise program in reducing high blood pressure, 15 participants had their blood pressures recorded before beginning the program and again after completing the program. The difference (after minus before) in blood pressure was recorded for each participant, and the sample mean difference was calculated. A hypothesis test will be conducted to investigate whether there is convincing statistical evidence for a reduction in blood pressure for all who complete the program. Which of the following is the correct set of hypotheses?
A. H0 : bar xD = 0
Ha : bar xD is not equal to 0
B. H0 : bar xD = 0
Ha : bar xD > 0
C. H0 : mu D = 0
Ha : mu D is not equal to 0
D. H0 : mu D = 0
Ha : mu D > 0
E. H0 : mu D = 0
Ha : mu d < 0
Answers: 2
Mathematics, 21.06.2019 20:00, ghlin96
Axel follows these steps to divide 40 by 9: start with 40. 1. divide by 9 and write down the remainder. 2. write a zero after the remainder. 3. repeat steps 1 and 2 until you have a remainder of zero. examine his work, and then complete the statements below.
Answers: 1
Mathematics, 22.06.2019 02:00, bchagnard2122
Grant simplified the expression 1.5(-3.2 + 2.5) his work is shown below explain the error in grants work
Answers: 1
To test the effectiveness of an exercise program in reducing high blood pressure, 15 participants ha...
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