In Order to Predict with 98% Confidence the Expected Value

question 37

Multiple Choice

In order to predict with 98% confidence the expected value of y for a given value of x in a simple linear regression problem, a random sample of 15 observations is taken. Which of the following t-table values listed below would be used?

• A) 1.350
• B) 1.771
• C) 2.160
• D) 2.650
• E) 1.750

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Definitions:

Residual

The difference between an observed value and the predicted value given by a statistical model.

R Squared

A statistical measure that represents the proportion of the variance for a dependent variable that's predicted from an independent variable or variables in a regression model.

Regression

A statistical method used to determine the relationship between a dependent variable and one or more independent variables.

Correlation

A statistical measure that describes the extent to which two variables change together, and how strong the relationship is between them.