The Average Grade of a Sample of 30 Students on Their

question 28

Essay

The average grade of a sample of 30 students on their second statistics examination was 85 with a standard deviation of 11. Is the variance of the population significantly more than 80? Use a 0.05 level of significance.

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Definitions:

Long-Term Allegiance

A prolonged loyalty or commitment to a particular group, party, or cause.

Ideological Changes

Shifts in the underlying beliefs, values, and principles that drive political, economic, or social policies and behaviors within a society.

Third Parties

Political parties that compete alongside the two dominant parties in a two-party system, often representing specific or alternative interests.

U.S. Political System

A democratic system of government characterized by a constitution, federalism, separation of powers, checks and balances, and a two-party system.