There is a linear relationship between a person's body mass index (BMI) and their HDL cholesterol. Doctors wanted a 95% confidence interval for the...

We are 95% confident that the sample regression slope is between 3.966 and 9.014.

We are 95% confident that the population regression slope is between 3.966 and 9.014.

95% of the data are between 3.966 and 9.014.

There is a 95% chance that the true regression slope is between 3.966 and 9.014.