Question: A study is conducted in 100 children to assess risk factors for obesity. Children are enrolled and undergo a complete physical examination. At the examination, the height and weight of the child, their mother, and their father are measured and are converted to body mass index scores (weight \((\mathrm{kg}) /\) height \(\left.(\mathrm{m})^{2}\right)\). Data on self-reported health behaviors are captured by interview and merged with the physical examination data. The primary outcome variable is child's obesity: for analysis, children are classified as normal weight (BMI <25 ) or overweight/obese (BMI \(\geq\) 25). Data on key study variables are summarized in Table 7-62. Is there

a statistically significant difference in mean age between normal and overweight/obese children? Run the test at a \(5 \%\) level of significance.

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