Continuing from Quiz 5 (i.e. not reloading the Data Cleaning dataset), append the dataset “Data Cleaning Session_Additional Data.csv” to the main dataset. Be sure to drop, add, or rename any variables in the appended dataset so that the structure matches the main dataset.
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1. How many students in the combined dataset were on task during both observations?
2. Suppose that you had renamed the class size variable (class_scan_1) in the main dataset, but did not remember to rename that variable in the appending dataset. What will happen when you run the append command?
3. How many TEACHERS in your merged dataset have a missing value for their treatment status?
4. How many SCHOOLS in your merged dataset have a missing value for their treatment status?
5. What is the median class size (non-winsorized) in treatment schools? Round to the nearest whole number. Ignore missing values.
4 December 2024
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