Nonparametric: A small study is conducted to compare birth weight in babies born to different groups of mothers based on their smoking status (nonsmokers, ex-smokers, light smokers, and heavy smokers). Is there a significant difference between birth weights due to maternal smoking status? Use the Kruskal Wallis test with a 5% level of significance. What is H? (Round to 3 decimal places throughout the calculations to ensure your answer is similar to mine). Birth weights of infants in four groups of mothers. (Observed data) Group 1 (Nonsmokers) Group 2 (Ex-smokers) Group 3 (<1/2 pack/day) Group 4 (≥1/2 pack/day) 8.6 7.4 6.0 7.0 8.5 8.6 6.8 5.2 6.3 8.5 7.3 6.1 9.3 5.4 5.7 6.7 8.0 9.2 8.7 6.6 6.8 6.3 7.4 4.9 6.3
Nonparametric: A small study is conducted to compare birth weight in babies born to different groups of mothers based on their smoking status (nonsmokers, ex-smokers, light smokers, and heavy smokers). Is there a significant difference between birth weights due to maternal smoking status? Use the Kruskal Wallis test with a 5% level of significance. What is H? (Round to 3 decimal places throughout the calculations to ensure your answer is similar to mine).
Birth weights of infants in four groups of mothers. (Observed data)
|
Group 1 (Nonsmokers) |
Group 2 (Ex-smokers) |
Group 3 (<1/2 pack/day) |
Group 4 (≥1/2 pack/day) |
|
8.6 |
7.4 |
6.0 |
7.0 |
|
8.5 |
8.6 |
6.8 |
5.2 |
|
6.3 |
8.5 |
7.3 |
6.1 |
|
9.3 |
5.4 |
5.7 |
6.7 |
|
8.0 |
9.2 |
8.7 |
6.6 |
|
6.8 |
|
6.3 |
7.4 |
|
|
|
|
4.9 |
|
|
|
|
6.3 |
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