Use the Data in the Given Table and the Corresponding

question 67

Essay

Use the data in the given table and the corresponding Minitab display to test the hypothesis. The following
Minitab display results from a study in which three different teachers taught calculus classes of five different
sizes. The class average was recorded for each class. Assuming no effect from the interaction between teacher
and class size, test the claim that the teacher has no effect on the class average. Use a 0.05 significance level. $$\begin{array} { l r l l l l } \text { Source } & \text { DF } & \text { SS } & \text { MS } & F & p \\\text { Teacher } & 2 & 56.93 & 28.47 & 1.018 & 0.404 \\\text { Class Size } & 4 & 672.67 & 168.17 & 6.013 & 0.016 \\\text { Error } & 8 & 223.73 & 27.97 & & \\\text { Total } & 14 & 953.33 & & &\end{array}$$

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Definitions:

Securely Attached

An attachment category describing babies who typically show distress on separation from the mother in the strange situation test, but who greet her happily on her return, usually seeking comfort by reaching to be picked up. Once reassured, they tend to return to exploring. In Bartholomew’s description of adult attachment categories, describes individuals who expect others to be available and supportive of their needs in close relationships, who are comfortable with emotional closeness, but are also reasonably autonomous.

Self-Concept

An individual's perception of themselves, including beliefs, feelings, and thoughts about one's abilities, appearance, and values.

Cognitive Development

The process by which individuals acquire and develop the ability to think, understand, and reason over time.

Social Referencing

A baby’s adjustment of its reactions to objects or events based on feedback provided by a caregiver. For example, a baby may look at a caregiver’s facial expression before approaching a new toy.