Module 2. Week 2, gretl problem set 4 Use gretl and the dataset \"Maternal and Infant Health Surveyr ZUDE" to answer the following questions. 1. Test the hypothesis that mean birthweight is different from Tl lbs. 2. Test the hypothesis that mean birthweight is less than 6.5 lbs. 3. Test the hypothesis that the proportion of female babies is different from D50. 4. Create a new variable named "smoke" that equals 0 if the mother did not smoke anyr cigarettes during pregnancy and equals 1 if the mother smoked at least one cigarette during pregnancy. Test the hypothesis that mean birthweight differs between smokers and non- smokers. 5. Test the hypothesis that the variables "gender" and \"induced" are related (Le. not independent]. 6. Test the hypothesis that mean birthweight differs across mother's race