Random Samples of Size 525 Are Taken from an Infinite

question 41

Multiple Choice

Random samples of size 525 are taken from an infinite population whose population proportion is 0.3. The standard deviation of the sample proportions (i.e., the standard error of the proportion) is

• A)0.0004
• B)0.2100
• C)0.3000
• D)0.0200

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Definitions:

Standardized Residuals

Residuals normalized to have a mean of zero and a standard deviation of one, used in regression analysis to identify outliers.

Regression Equation

An equation that estimates the relationship between a dependent variable and one or more independent variables.

Predicted Values

These are values estimated based on a model, representing what is likely to happen under certain conditions according to that model.

Homoscedasticity

The condition where the variance of the residuals, or errors, in a regression model is constant across all levels of the independent variable.