Which Statement Is Not True Concerning the T Distribution

question 143

Multiple Choice

Which statement is not true concerning the t distribution?

• A)Compared to the normal distribution,the t distribution has more area in the tails and less in the center.
• B)As the number of degrees of freedom increases,the t distribution approaches the normal distribution.
• C)The t distributions are skewed to the left.
• D)The population variance is unknown and is estimated by the sample variance s².

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Definitions:

Group Polarization

The tendency for a group to make decisions that are more extreme than the initial inclination of its members, especially after group discussions.

Racially Prejudiced

Holding prejudgments or hostile attitudes towards individuals of a different race based on stereotypes and biases.

Groupthink

A psychological phenomenon in which the desire for harmony or conformity within a group results in an irrational or dysfunctional decision-making outcome.

Foot-In-The-Door Effect

The foot-in-the-door effect is a psychological principle that suggests people are more likely to agree to a large request if they first agree to a smaller one.