A teacher wanted to estimate her student's final grade in statistics based on their score in an aptitude test. They used least-squares regression to calculate the following from their sample data: Y = 27 + 0.6X. In this equation Y represents the statistics final grade (out of 100) and X represents the aptitude test score. Use this information for all parts. QUESTION: Based on the material taught in this course, which of the following is the most appropriate null hypothesis to determine if the aptitude test score has a statistically significant linear relationship with the statistics final grade? O Ho : Bo = 0 O Ho : B1 # 0.6 O Ho : B1 # 0 O Ho : B1 = 0.6 O Ho : B1 = 0