In Simple Linear Regression, the Coefficient of Correlation R and the Least

question 183

Multiple Choice

In simple linear regression, the coefficient of correlation r and the least squares estimate $\hat { \beta } _ { 1 }$ of the population slope $\beta _ { 1 }$ :

• A)Must be the same size and sign.
• B)May have a different size and different sign.
• C)May be the same size but have different sign.
• D)May be different sizes but will have the same sign.

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