When a Computed Z Value (For a Test for Differences

question 31

Multiple Choice

When a computed z value (for a test for differences between two percentages) , 4.21, is larger than the standard z value, 1.96, then this amounts to:

• A) support for the null hypothesis; the two percentages are different
• B) no support for the null hypothesis; the two percentages are NOT different
• C) support for the null hypothesis, the two percentages are NOT different
• D) no support for the null hypothesis; the two percentages are different
• E) None of the above; a z value is inappropriate for testing the differences between two percentages.

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Definitions:

Late Nineteenth Century

Refers to the period from 1801 to 1900, typically highlighting global industrial, cultural, and political changes.

Democratic Countries

Nations that operate under a system of government in which power is vested in the people, who rule either directly or through freely elected representatives, emphasizing principles such as political equality, pluralism, and civil liberties.

World's Population

The total number of people living on Earth at any given time.

Percent

A means of expressing a number as a fraction of 100.