A researcher evaluates if speech perception performance can be predicted by the duration of deafness in a group of cochlear implant users. In the linear regression model, a=58.01, b= -0.50. What is the equation used for predicting the speech perception performance using the duration of deafness? Group of answer choices Speech perception performance = -0.50 + (58.01*duration of deafness) Speech perception performance = 58.01 + (0.50*duration of deafness) Speech perception performance = 58.01 - (0.50*duration of deafness) Speech perception performance = -0.50 - (58.01*duration of deafness)