One Reason the Denominator for Sample Variance Is (N -

question 64

True/False

One reason the denominator for sample variance is (n - 1)is because this makes it an unbiased estimator of the population variance.

Explain how concepts are formed through the grouping of objects, events, and characteristics based on common properties.

Describe executive functioning and its importance in goal-directed behavior.

Understand the developmental process of problem-solving skills from early childhood through adolescence.

Recognize the role of analogies, problem-solving, and conceptual understanding in cognitive development.

---

Definitions:

Null Hypothesis

A rephrased definition: The presumption that no significant relationship exists in the population and that any observed effect is due to sampling variability.

Indirectly

In a way that is not directly expressed or done; an indirect method or approach.

Null Hypotheses

A statement used in statistics that proposes there is no significant difference or relationship between specified populations, or no effect of a particular treatment.

Sample

A subset of a population selected for observation and analysis in order to make inferences about the entire population.