Babies come in all shapes and sizes when they are born, so we are often interested in what variables may help determine a baby's birthweight. In Lab 8, we looked at the relationship between baby's birthweight and gestational period, but now we also want to know if the baby's birthweight (in grams) is related to gestational period (in weeks), height (in cm), the mother's weight at the beginning of the pregnancy (in kg), and the mother's weight when the baby was born (in kg). We have the same random sample of first-time mothers from Lab 8, with all the variables measured.State the hypotheses in symbols only (you do not need to define any parameters). Do not worry about Greek letters or subscript. For example, B1 is acceptable to represent By. + A * B PAState the hypotheses (Ho and Ha) in symbols. AY B E S'S PAWhich of the following is the correct interpretation of the parameter? O a. Where B1 represents the increase in average [or mean or expected] birthweight when gestational period increases, with specified values for height, beginning weight, and end weight, for the population of all first- time mothers. O b. Where By represents the increase in average [or mean or expected] birthweight when gestational period increases by 1 week, with specified values for height, beginning weight, and end weight, for the population of all first-time mothers. O c. Where By represents the increase in average [or mean or expected] birthweight when gestational period increases by 1 week, with specified values for height, beginning weight, and end weight, for the population of all 48 first-time mothers. O d. Where By represents the increase in average [or mean or expected] birthweight when gestational period, height, beginning weight, and end weight increases by 1 unit, for the population of all first-time mothers