Mathematics, 22.02.2021 18:50 jasminecoronetti44
The data set BWGHT contains data on births to women in the United States. Two variables of interest are the dependent variable, infant birth weight in ounces (bwght), and an explanatory variable, average number of cigarettes the mother smoked per day during pregnancy (cigs). The following simple regres-sion was estimated using data on n 5 1,388 births:
bwght= 119.77−0.514cigs
Required:
a. What is the predicted birth weight when cigs = 0? What about when cigs = 20 (one pack per day)? Comment on the difference.
b. Does this simple regression necessarily capture a causal relationship between the child's birth weight and the mother's smoking habits? Explain.
Answers: 1
Mathematics, 21.06.2019 18:00
List the sides of δrst in in ascending order (shortest to longest) if: m∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12°
Answers: 1
Mathematics, 21.06.2019 19:00
You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?
Answers: 1
Mathematics, 21.06.2019 19:10
Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15
Answers: 1
Mathematics, 21.06.2019 20:00
James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number t of tokens james has is a function of g, the number of games he plays. write the function’s formula? t=
Answers: 1
The data set BWGHT contains data on births to women in the United States. Two variables of interest...
Social Studies, 25.05.2021 22:20
Chemistry, 25.05.2021 22:20
Mathematics, 25.05.2021 22:20
Mathematics, 25.05.2021 22:20
Mathematics, 25.05.2021 22:20
Mathematics, 25.05.2021 22:20
History, 25.05.2021 22:20