Examlex
A statistics teacher wants to know how students in her school feel about mathematics courses. She decides to administer a
survey to a random sample of students taking a mathematics course. She has several sampling plans to choose from.
a. There are four ranks of students taking the class: freshmen, sophomores, juniors, and seniors. Randomly select 15 students
from each class rank.
b. Randomly select ten math class sections and survey every student in each of those sections.
c. Each student has a nine-digit student number. Randomly choose 60 different nine-digit numbers and survey the students
that correspond to those numbers.
d. Randomly select a number from 1 to 5. Using the class roster, start at that number, then select every fifth student from the
list after that.
-Name the sampling strategy in each plan.
Radio Buttons
Graphical interface elements that allow users to select one option from a predefined set of mutually exclusive options.
Text Boxes
Rectangular areas in documents or electronic forms where text can be entered or displayed.
Check Boxes
Tools used in forms and questionnaires, allowing individuals to select one or more options from a list of choices.
Sampling Unit
The basic unit containing the elements of the population to be sampled, such as individual participants or geographical areas.
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