Calculate a 95% confidence interval for the effect of a one unit increase in exercise on resting heart rate for a non-smoker [Smokea]. That is, creat a 95% confidence interval for g. Use 1.96 as the 95% multiplier. What is the lower llmlt of this 95% confidence interval? PUT A NUMERIC ANSWER ONLY AND ROUND TO THE 4th DECIMAL PLACE XXXXX SO IF THE ANSWER IS 1.2345 THEN YOU WOULD INPUT 1.2345. IF YOUR ANSWER I5 NEGATIVE, THEN YOU WOULD PUT 4.2345 Enter your answer here An observational study was conducted where subjects were randomly sampled and then had their resting heart rate recorded, as well as their smoking status (0 for nonsmoker and 1 for smoker) and how much they exercise on average each day (in hours). A linear regression model is fit where we have response variable of resting heart rate and explanatory variables of smoking status (0 for nonsmoker and 1 for smoker) and exercise amount per day in hours, along with an interaction between smoking status and exercise amount. The output is below: Coefficients: Estimate Std. Error t value Pr()|t|) (Intercept) 84.8172 1.9553 43.3?7