minor changes lect 15 and 16

Author: tomhanna-uh

Lecture_Materials_2023/Lecture_15_Confidence_Intervals_OLS/Lecture_15_Confidence_Intervals_OLS.qmd

@@ -229,7 +229,8 @@ ggplot(data = mtcars, aes(x = wt, y = mpg)) +
 
  https://www.statisticshowto.com/95-percent-confidence-interval/
 
- ## Authorship, License, Credits
+ 
+## Authorship, License, Credits
 
 - Author: Tom Hanna
 

Lecture_Materials_2023/Lecture_16_OLS_Regression/lecture_16_ols_regression.qmd

@@ -245,3 +245,16 @@ It is worth looking at the formulas all together to see some of the relationship
 
 ![correlation coefficient formula](correlation-coefficient.png)
 
+ ## Authorship, License, Credits
+
+- Author: Tom Hanna
+
+- Website: <a href="https://tom-hanna.org/">tomhanna.me</a>
+
+- License: This work is licensed under a <a href= "http://creativecommons.org/licenses/by-nc-sa/4.0/">Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.</a>
+
+<a href= "http://creativecommons.org/licenses/by-nc-sa/4.0/">![Creative Commons License](creative_commons_license.png)</a>
+
+
+
+