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1 Open the “Chapter 1 Exercise Data.dta” data file.

2 Save a copy of the open data file named “Chapter 1 Ex mycopy.dta.”

3 Using the Data Browser, determine how many cases and variables are in the data set.

4 Which of the variables is a string variable?

5 Use the Data Editor to change the agefstdt value of the last case from 14 to 13.

6 Use the Data Editor to input an additional case with the following characteristics: ids value of 1004, is Male, completed the 12th grade, went on his first date at 16, lives in the Pacific census region, and does not live with his parents.