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:

Parameter

A numerical characteristic of a population, such as a population mean m, a population standard deviation s, a population proportion p, and so on.

Adjusted Multiple Coefficient

A measure in statistics used to determine the goodness of fit of a model, adjusted for the number of predictors in the model.

SSE

Sum of Squared Errors, a measure used in statistical data analysis to represent the discrepancy between the data and an estimation model.

Coefficient

A numerical or constant quantity placed before and multiplying the variable in an algebraic expression (e.g., the 4 in 4x).