Margin of Error for Regression Slope
A regression analysis produced the following statistics for the slope of a least-squares regression line: b₁ = 2.5, t = 3.125, p = 0.004, and df = 24. For a 95% confidence interval, the critical value is t* = 2.064. What is the margin of error for the confidence interval for the slope?
A
5.16
B
2.5
C
1.65
D
0.80
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