A Child Psychologist Was Interested in the Difference in Age

question 124

Short Answer

A child psychologist was interested in the difference in age (in years) between a boy and girl when they first learn to ride a two-wheeled bicycle. The psychologist developed a 99% confidence interval for the difference in average ages to be (-0.58, 0.73). What conclusion, if any, can be drawn from this interval?
Since 0 is included in the interval, one ______________ conclude there is a difference in age, on the average, at which boys and girls first learn to ride a two-wheeled bicycle.

---

Definitions:

Innovations

New ideas, devices, or methods that improve something or introduce significant positive change.

Knowing-Doing Gap

The discrepancy between what people know they should do and what they actually do in practice.

Managers

Individuals within an organization responsible for directing, controlling, and administering work groups or departments to achieve the organization's objectives.

Knowledge

Information, understanding, and skills acquired through experience or education, allowing individuals to navigate various situations.