A Statistics Instructor Wishes to Know the Average Age (In

question 27

Multiple Choice

A Statistics instructor wishes to know the average age (in month) of his 200 students.He is too lazy to sample all 200 students so he decides to choose 20 students at random from the class and ask them for their age.He orders all students alphabetically by their first name.He then selects every 10th person on the list to be in his sample.This sampling method is called a

• A)Cluster Sample.
• B)Simple Random Sample.
• C)Voluntary Sample.
• D)Stratified Random Sample.
• E)Systematic Random Sample.

---

Definitions:

Obstacle Courses

Physical or metaphorical challenges composed of multiple obstacles that require agility, strength, and strategic thinking to navigate or overcome.

Nonparametric Tests

Statistical tests that do not assume the data being analyzed follows a particular distribution, often used when data doesn't meet the assumptions of parametric tests.

Z-statistic

A measure that describes how far a data point is from the mean, expressed in units of standard deviation.

Significance Level

The probability of rejecting the null hypothesis in a statistical test when it is actually true, commonly denoted by alpha and used as a threshold for determining the statistical significance of a result.