Test Hypotheses About a Population Proportion
-Compute the Standardized Test $\chi ^ { 2 }$

question 75

Multiple Choice

Test Hypotheses about a Population Proportion
-Compute the standardized test statistic, $\chi ^ { 2 }$ , to test the claim $\sigma ^ { 2 } = 38.7$ if $n = 12 , \mathrm {~s} ^ { 2 } = 32.4$ , and $\alpha = 0.05$ .

• A) \(9.209\)
• B) \(12.961\)
• C) \(18.490\)
• D) \(0.492\)

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Definitions:

P-Value

In statistical hypothesis testing, the p-value is the probability of obtaining test results at least as extreme as the results actually observed, under the assumption that the null hypothesis is correct.

F Test

A statistical test used to determine if there are significant differences between the variances of two or more groups.

Mustang Population

Refers to the total number of Mustang horses (a type of free-roaming horse of the American west) existing within a specific area or globally.

Sums of Squares

A statistical technique used to describe the total variation or dispersion of a set of data points around their mean.