Before the Presidential Debates, It Was Expected That the Percentages $\alpha$

question 44

Essay

Before the presidential debates, it was expected that the percentages of registered voters in favor of various candidates would be as follows.

After the presidential debates, a random sample of 1200 voters showed that 540 favored the Democratic candidate; 480 were in favor of the Republican candidate; 40 were in favor of the Independent candidate, and 140 were undecided. We want to see if the proportion of voters has changed.
a.Compute the test statistic.
b.Use the p-value approach to test the hypotheses. Let $\alpha$ = .05.
c.Using the critical value approach, test the hypotheses. Let $\alpha$ = .05.

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Definitions:

Effort

The amount of physical or mental energy expended to achieve a task or goal.

Foundation of Competition

The underlying principles and conditions that drive rivalry among firms in an industry to achieve superiority.

Four-drive Theory

A motivational theory proposing that human beings are driven by the desires to acquire, bond, learn, and defend.

Esteem

Relates to the self-respect, self-worth, or regard that an individual has for themselves; can also refer to the admiration one receives from others.