The Regression Equation Is Ŷ = 30 + 2

question 79

Multiple Choice

The regression equation is Ŷ = 30 + 2.56X,the sample size is 14,and the standard error of the slope is 0.97. What is the critical value to test the significance of the slope at the 0.05 significance level?

• A)z = ±1.96
• B)t = ±2.179
• C)t = ±2.145
• D)t = +2.145

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