The Plot Below Shows the Residuals Vs Fitted Values for the Model

question 13

Multiple Choice

The plot below shows the Residuals vs Fitted Values for the model of predictors Height, Weight, and Chest measurements (all in inches) and response percent body fat (Pct.BF)
Before observation 251 was removed.It was assumed that a typo was made and an extra zero
Was added to the Pct.BF value.Which of the following statements are true?

• A) After removing observation 251 , The value of \(R ^ { 2 }\) will increase.
• B) After removing observation 251 , he standard deviations of the residuals will decrease.
• C) Observation 251 is clearly a high leverage point.
• D) The coefficient of Chest will not change when this point is removed.
• E) Making conclusions without plotting the data can be disastrous.

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Definitions:

Material Terms

Essential provisions or clauses in a contract that are crucial to the performance of the agreement and integral to the contract’s objectives.

Market Price

The current price at which an asset or service can be bought or sold in the market.

Signed Memo

A written document that has been signed by the author or parties involved, often serving as a record or agreement.

Revocation

The act of withdrawing, cancelling, or reversing a decision, offer, or statement.