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.
A. Write a hypothesis regarding the effects of breakfast consumption on reaction time.
B. What is the dependent variable? What is the independent variable?
Oral cavity: (A) sagittal section; (B) anterior view as seen through the open mouth.
Sagittal section of the nasal cavity and pharynx.
Thyroid scan. The right image is the data from a thyroid scan, printed on a superimposed map of the
Osteoporosis. (a) A section through normal spongy bone. (b) A section through a bone with osteoporos
table
The Chi-Square Table