The Grades of a Sample of 5 Students, Selected from a Large

question 32

Essay

The grades of a sample of 5 students, selected from a large population, are given below.
a.Determine a point estimate for the variance of the population.
b.Determine a 95% confidence interval for the variance of the population.
c.At 90% confidence, test to determine if the variance of the population is less than or equal to 50.

---

Definitions:

External Locus

A psychological concept where individuals believe that their lives are controlled by external forces rather than their own actions.

Reciprocal Determinism

A concept in psychology introduced by Albert Bandura, suggesting that a person's behavior is influenced by personal factors and their environment, with each factor influencing and being influenced by the other simultaneously.

Poor Performance

The inability to execute tasks or activities with the expected skill or standard, often leading to unsatisfactory outcomes.

Self-Efficacy

An individual's belief in their capacity to execute behaviors necessary to produce specific performance attainments.