Question

Categorize the style of gathering data (sampling, experiment, simulation, census) for the following situations:

(a) Consider all the students enrolled at your college this semester and report the age of each student.

(b) Select a sample of new F150 pickup trucks and count the number of manufacturer defects in each of the trucks.

(c) Use computer graphics to determine the flight path of a golf ball when the position of the hand on the golf club is changed.

(d) Teach one section of English composition using a specific word processing package and teach another without using any computerized word processing. Count the number of grammar errors made by students in each section on a final draft of a 20 page term paper.

Answer 1

A census is the procedure of systematically acquiring and recording information about the members of a given population

Sampling is a process used in statistical analysis in which a group of observations are extracted from a larger set.

In an experiment , a researcher assigns a treatment and observes the response . Sometimes,a control group (a group receiving no treatment or a placebo) may be used to compare the effectiveness of a treatment.

• A simulation uses a mathematical, physical, or computer model to replicate the conditions of a process or situation. This is frequently used when the actual situation is too expensive, dangerous, or impractical to replicate in real life

a)

census

b)

sampling

c)

simulation

d)

experiment