Regression slope intervals

Desiree is interested in the relationship between caffeine consumption and hours spent studying at her university. She randomly selects $20$ students at her school and records their caffeine intake (mg) and the amount of time spent studying in a given week. A computer output from a least-squares regression analysis on these data is shown below. Predictor | Coef | SE Coef |T| P| - | - | - **Constant** | $2.544$ | $0.134$ | $18.955$ | $0.000$ **Hours Studying**| $0.164$| $0.057$| $2.862$|$0.005$ $S=1.532\quad R\text{-}Sq=60.032\%\quad R\text{-}Sq (adj) = 58.621\%$ **What is Desiree’s $95\%$ confidence interval for her regression slope?** [[☃ radio 1]]