At a Large Midwestern College, 4% of the Students Are

question 12

Multiple Choice

At a large Midwestern college, 4% of the students are Hispanic. A random sample of 20 students from the college is selected. Let X denote the number of Hispanics among them. The probability that X is at least 1 is:

• A)0.22.
• B)0.44.
• C)0.56.
• D)0.77.

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Definitions:

Null Hypothesis

A hypothesis that assumes no significant difference or effect, serving as a default assumption to be tested against experimental data.

Wilcoxon Signed Rank Test

A non-parametric statistical hypothesis test used to compare two related samples, matched samples, or repeated measurements on a single sample to assess whether their population mean ranks differ.

Test Statistic

In hypothesis testing, the test statistic is a standardized value derived from sample data, used to make a decision about the null hypothesis.

SPSS Output

The results generated by the Statistical Package for the Social Sciences, including statistical tests, tables, and graphs, after data analysis.