The Elements in the Off-Diagonal Positions of the Variance Covariance

question 64

Multiple Choice

The elements in the off-diagonal positions of the Variance Covariance matrix are:

• A) covariances.
• B) security selections.
• C) variances.
• D) security weights.

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Definitions:

Null Hypothesis

Re-phrased: The presumption in statistical testing that asserts no association or effect among studied variables.

Critical Value

A threshold in hypothesis testing that defines the boundary beyond which an observed test statistic is considered statistically significant.

Level of Significance

A threshold used in hypothesis testing that determines the probability of wrongly rejecting a true null hypothesis.

T-test

A statistical method employed to ascertain whether there's a notable difference in the average values of two distinct groups.