diff --git a/R/testdata.R b/R/testdata.R
deleted file mode 100644
index 0d14d8e640c7735f6f7cb165aea6b5646a34f110..0000000000000000000000000000000000000000
--- a/R/testdata.R
+++ /dev/null
@@ -1,12 +0,0 @@
-#' Random generated numbers and values for explanatory purpose.
-#'
-#'
-#' @format A data frame,100 observations,  4 variables
-#' \describe{
-#'\item{\code{age}}{int age in years}
-#'\item{\code{spending_habits}}{int spendings per month in euro}
-#'\item{\code{income}}{int income per month in euro}
-#'\item{\code{gender}}{chr genderidentity: male, female, nonbinary}
-#'}
-
-"testdata"
diff --git a/README.md b/README.md
index 245f22b92507616aa88c8f2dc22f77ca86f83e24..5fb1f4b39aeb97303beccbc4d745c944ddfd9df4 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,7 @@
 # sozoekds
 
-Package for the course "Data Science for Socioeconomists" at the department of Socioeconomics at University of Hamburg, Germany.
+Package for the exam of the course "Data Science for Socioeconomists" at the department of Socioeconomics at University of Hamburg, Germany.
 
-Includes 5 different data sets that will be used within the course: *airbnbbig* and *airbnbsmall* include data about Airbnb listing from London, *calhouse* includes data about the housing market in California, *examscores* is a fictional dataset about grades and the socioeconomic background of students, *testdata* is a fictional dataset about income and spending habits.
 
 ## Installation