PROJECT ONE BIOSTATISTICS II Part I: Data and Variables The following table is obtained: Table 1. Descriptive
PROJECT ONE BIOSTATISTICS II
Part I: Data and Variables
The following table is obtained:
Table 1. Descriptive statistics of the variables
| Variable | n | Mean | SD | Min | Max |
| Birth weight (grams) | 189 | 2944.66 | 729.02 | 709 | 4990 |
| Mother’s age (years) | 189 | 23.24 | 5.30 | 14 | 45 |
| Mother’s weight (pounds) | 189 | 129.81 | 30.58 | 80 | 250 |
| White | 189 | 0.51 | 0.92 | 0 | 1 |
| Black | 189 | 0.14 | 0.50 | 0 | 1 |
| Other | 189 | 0.35 | 0.35 | 0 | |
| Smoking during pregnancy | 189 | 0.39 | 0.48 | 0 | 1 |
| Number of premature labors | 189 | 0.20 | 0.49 | 0 | 3 |
| History of hypertension | 189 | 0.06 | 0.24 | 0 | 1 |
| History of urinary irritation | 189 | 0.15 | 0.36 | 0 | 1 |
| Number of physician visits | 189 | 0.79 | 1.06 | 0 | 6 |
Observe that all variables have one missing value (which corresponds to the same case, the last one, which is associated with row 190, which is empty).
The mean birth of newborns is M = 2944.66 grams, with a standard deviation of SD = 729.02 .
Also, the percentage of White respondents is 51%, whereas the percentage of Black respondents is 14%.
The percentage of respondents who have been smoking during pregnancy is 39%.
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