6 To see if students with longer feet tend to be taller, a random sample of 25 students was selected from a large high school. For each student, = foot length (cm) and = height (cm) were recorded. We checked that the conditions for inference about the slope of the population regression line are met. Given is a portion of the computer output from a least-squares regression analysis using these data.
S = 6.47044
R-Sq = 72.8%
R-Sq(adj) = 71.5%
Which of the following is a 95% confidence interval for the population slope ?
A) 3.0867 ± 0.8481
B) 3.0867 ± 0.8069
C) 3.0867 ± 0.4117
D) 3.0867 ± 0.8497
E) 3.0867 ± 0.8518
