Posted by **Bettie** on Monday, April 8, 2013 at 4:04pm.

The table below reports birth weight and whether the mother smoked for 189 pregnancies. If Smoking and Birthweight were independent, then we would expect the number of low birth weight babies born to smoking mothers to be:

(???/???) * ??? = 23.1

The residual for the corresponding cell of the table is thus:

??? - 23.1 = 6.9.

Birth Weight

Smokes High Med Low Total

No Smoke 42 44 29 115

Smoke 13 31 30 74

Total 55 75 59 189

## Answer This Question

## Related Questions

- child growth development - Regarding babies who are low in birth weight but born...
- Health (Ms. Sue) - 1. Classify the following as risks to teen mothers, to teen ...
- Statistics - Suppose that the birth weight of newborn babies in the U.S is ...
- Math - The birth weight of full-term babies was found to follow a normal ...
- statistics - An obstetrician maintains that preterm babies (gestation less than ...
- mathematics - A new born infant usually triples its weight by its first birthday...
- Stats. - An obstetrician maintains that preterm babies (gestation less than 37 ...
- maths - Data were collected on the differences in weight gains of 12 people one ...
- Statisitics:Standard Deviation of Population and o - Standard Deviation of ...
- statistics - The weight of 14 healthy newborn children was measured. The sample...

More Related Questions