What would the null hypothesis for the experiment presented on the previous slide?

Questions Relating to Blood Pressure
Experiments

• Answer the following questions.

• The answers must be typed and submitted through Blackboard to your instructor.
• This assignment is worth 10 points.

• See syllabus for due date.

The Experimental Design
• The following experiments were conducted on a healthy man with average blood
pressure.

• In his experiments, he would first determine his blood pressure at rest

• Then he would test a treatment to determine if it affected his blood pressure

– He would take his blood pressure at various time points using a home blood pressure monitor
http://www.onetwentyovereighty.com/blood- pressure/blood-pressure-experiments/

Questions
• In the first experiment, he tested the affect of drinking a large, caffeinated coffee on
blood pressure
he measured his blood pressure at three minute intervals
• Question 1: Write a hypothesis as to how his blood pressure will be affected by
drinking a large, caffeinated coffee.
http://www.onetwentyovereighty.com/blood-
pressure/blood-pressure-experiments/

Data for Answering Questions 1-5 This graph shows the patient’s actual systolic and
diastolic blood pressure at three minute intervals
http://www.onetwentyovereighty.com/blood- pressure/blood-pressure-experiments/

Questions
• Question 2: Why was the patient’s blood pressure recorded before he drank the coffee?

• Question 3: From the data presented in the previous slide, draw conclusions about the affects of caffeine on blood pressure.

• Questions 4 and 5: Would these conclusions be considered as a possible basis for a theory? Explain your answer.
http://www.onetwentyovereighty.com/blood pressure/blood-pressure-experiments/

Questions
• In a second experiment, he tested the affects of smoking a cigar on blood
pressure
– Again, he measured his blood pressure at various time intervals http://www.onetwentyovereighty.com/blood- pressure/blood-pressure-experiments/

Data for Answering Questions 6-8
This graph shows the patient’s systolic and diastolic blood pressure during the smoking of a cigar.
http://www.onetwentyovereighty.com/blood- pressure/blood-pressure-experiments/

Questions Continued…
Question 6: What would the null hypothesis for the experiment presented on the
previous slide?

Question 7: From the data presented in the previous slide, draw conclusions about the affects of smoking on blood pressure.
http://www.onetwentyovereighty.com/blood- pressure/blood-pressure-experiments/

Questions Continued…
Question 8: What are the problems/limitations with this experiment?

Questions 9 and 10: Would the two experiments presented in this PowerPoint
be considered scientific or nonscientific reasoning? Explain your answer.