When Determining the Required Sample Size for a Confidence Interval,you

question 87

Short Answer

When determining the required sample size for a confidence interval,you need to know the population ____________________,the confidence ____________________,and the ____________________ on the error of estimation.

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Definitions:

Correlation Coefficient

The correlation coefficient is a statistical measure that calculates the strength and direction of a linear relationship between two variables.

Stepwise Regression

A method of regression analysis that involves automatic selection of independent variables to use in a model based on certain criteria.

Backward Elimination

A stepwise regression technique where all predictors are included in the model initially, and then the least significant predictor is removed step-by-step until the best model is identified.

Forward Selection

A stepwise approach in model selection where variables are added one by one based on their statistical significance.