The data in this exercise and those that follow can be downloaded from http://www.stat.berkeley.edu/ statlabs/data/babies.data. The variables in the data set are:

[Minitab:] The data on the webpage needs to be saved as as a text le (*.txt) import the data into Minitab. It is important to click on the Options... button and choose the Free format eld de nition before importing le; otherwise the data will not import correctly.
[R:] R can read the data directly from the URL. Simply type

It is not necessary to do this in two steps, but it clari es what \(R\) is doing. If the data has been correctly imported then you should have 1,236 observations on seven variables.

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parity age height Variable bwt gestation Description == Birth weight in ounces (999 = unknown) Length of pregnancy in days (999 = unknown) Order of birth (0 = rst born, 9 = Mother's age in years unknown) Mother's height in inches (99 = unknown) weight Mother's pre-pregnancy weight in pounds (999 = unknown) smoke Smoking status of mother (0 = not now, 1 = yes now, 9 = unknown)