An experiment was conducted to determine the effect of practice time (in seconds) on the percent of unfamiliar words a person could recall. The scatter plot of Percent recalled versus Practice time was strongly curved, but the scatter plot of the natural logarithm of Percent recalled versus the natural logarithm of Practice time was roughly linear. Below is a regression analysis of ln (Percent recalled) vs. ln (Practice time). Predictor Coef SE Coef T P
Constant 1.512 0.01856 81.459 0.000
Practice Time 0.282 0.01878 15.033 0.000
S = 0.0250 R-S - 97.88 R-Sq(adj) = 97.48
Which of the following is the correct regression equation from this analysis?
(a) Percent recalled =1.512 +0.282(Practice time).
(b) Percent recalled =1.512 +0.282 In (Practice time).
(c) In(Practice time) =1.512 +0.282(Percent recalled).
(d) In(Percent recalled)=1.512 +0.282 (Practice time).
(e) In(Percent recalled)=1.512 +0.282 In (Practice time).