Exhibit 10-3 A Statistics Teacher Wants to See If There Is Any

question 50

Multiple Choice

Exhibit 10-3
A statistics teacher wants to see if there is any difference in the abilities of students enrolled in statistics today and those enrolled five years ago. A sample of final examination scores from students enrolled today and from students enrolled five years ago was taken. You are given the following information.
-Refer to Exhibit 10-3. The 95% confidence interval for the difference between the two population means is

• A)-9.92 to -2.08
• B)-3.92 to 3.92
• C)-13.84 to 1.84
• D)-24.228 to 12.23

---

Definitions:

Nonstandard Job Opportunities

Employment positions that differ from traditional or regular jobs in terms of hours, benefits, or contracts.

Social Needs

Fundamental human requirements for belonging and interpersonal connection within a society or community.

Interpersonal Skills

Abilities used to effectively communicate, interact, and work with individuals and groups through empathy, listening, and conflict resolution.

Interpersonal Relationships

The connections and interactions between two or more people, which can vary in closeness and significance.