Question 1
The human body is best described as always being in a state of equilibrium such that all body compartments are identical.
◦ True
◦ False
Question 2
Following is a table of data collected from one section of an 8
a.m. physiology lab. There were 20 students present, 10 males and 10 females. Information collected included students' height, weight, age, sex, and resting pulse rate. In addition, the students were surveyed to see if they smoked cigarettes, considered themselves "regular exercisers," and if they had consumed caffeine or eaten the morning of the lab. A "y" or "n" (yes or no) was recorded to indicate their answers.
Each student did "jumping jacks" for 5 minutes and recorded the time required to return to their resting heart rate, which is listed on the table as "recovery time." Finally, each student's reaction time (in milliseconds) was measured by catching an object dropped by a lab partner according to specified criteria.
Use this table to answer the following questions. Ignore statistical problems caused by small sample size, and so on.
Table 1.3
For these questions, the data were separated and analyzed by gender.
Refer to Table 1.3 and Figure 1.3
A. Write a hypothesis regarding gender and weight.
B. What is the dependent variable? What is the independent variable?
C. Based on the data in the graph above, what is your conclusion?
D. Why is a bar graph a good choice for presentation of these data? Would another type of chart be as effective?
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