A Researcher Is Interested in Whether High School Students Who

question 58

Multiple Choice

A researcher is interested in whether high school students who play sports have a higher or lower body mass index (BMI) than students in the general population. The researcher is unsure whether playing sports will decrease body mass (due to more calories burned) or increase body mass (due to more muscle mass) . The researcher selects a sample of 60 athletes and finds that their average BMI is 22. The average (µ) in the general population of students is 22.5 with a standard deviation (s) of 3. What is z_obt for this sample?​

• A)0.98
• B)1.29
• C)1.96
• D)2.25

---

Definitions:

Clear-Cut Options

Choices or alternatives that are straightforward, well-defined, and easy to understand or select between.

Organization's Value Systems

The core principles and ethical standards that guide the behavior, decisions, and practices within an organization.

Individual Character

The set of moral and mental qualities and beliefs that distinguishes one person from others, often influencing behavior and decision-making.

Personal Standards

The individual principles and criteria that guide behavior, performance, and the evaluation of oneself and others.