The table below gives the number of weeks of gestation and the birth weight (in pounds) for a sample of five randomly selected babies. Using this data, consider the equation of the regression line, ? = b0 + b1x, for predicting the birth weight of a baby based on the number of weeks of gestation. Keep in mind, the correlation coefficient may or may not be statistically significant for the data given. Remember, in practice, it would not be appropriate to use the regression line to make a prediction if the correlation coefficient is not statistically significant.
Weeks of Gestation: 35, 36, 39, 40, 41
Weight (in pounds): 6.8, 7.6, 8.1, 8.6, 9.4
Step 2 of 6: Find the estimated y-intercept. Round your answer to three decimal places.