In a study by the Child Health and Development Studies, all pregnancies between 1960 and 1967 among women in the Kaiser Foundation Health Plan in the San Francisco East Bay area were reviewed. The collected information included: The weight of the infants in ounces (bwt) The length of pregnancy in days (gestation), . The mother's age in years (age), The mother's height in inches (height), The mother's pregnancy weight in pounds (weight), Whether the child was the first born (first_pregnancy), and Whether the mother was a smoker (smoke). • • The following tables are generated by Rguroo's linear regression analysis performed on part of the data:
In a study by the Child Health and Development Studies, all pregnancies between 1960 and 1967 among women in the Kaiser Foundation Health Plan in the San Francisco East Bay area were reviewed. The collected information included: The weight of the infants in ounces (bwt) The length of pregnancy in days (gestation), . The mother's age in years (age), The mother's height in inches (height), The mother's pregnancy weight in pounds (weight), Whether the child was the first born (first_pregnancy), and Whether the mother was a smoker (smoke). • • The following tables are generated by Rguroo's linear regression analysis performed on part of the data:
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
![In a study by the Child Health and Development Studies, all pregnancies between 1960 and
1967 among women in the Kaiser Foundation Health Plan in the San Francisco East Bay area
were reviewed. The collected information included:
.
.
.
.
●
The weight of the infants in ounces (bwt)
The length of pregnancy in days (gestation),
The mother's age in years (age),
The mother's height in inches (height),
The mother's pregnancy weight in pounds (weight),
Whether the child was the first born (first_pregnancy), and
Whether the mother was a smoker (smoke).
The following tables are generated by Rguroo's linear regression analysis performed on part of
the data:
Cases Used in the Analysis
Data Used
Number of cases read
Number of cases used in analysis
Number of incomplete cases
(omitted)
Term
(Intercept)
gestation
age
height
weight
smoke Yes
first_pregnancy Yes
Residual Standard
Error
Regression Coefficients Estimates
Coefficient Standard
Estimate
Error
-73.887
0.43676
-0.11761
0.93463
0.054383
8.1294
4.0893
No.
R-
Squared
980
941
Model Summary: Coefficient of Determination (R-
Squared)
DF
15.6 934
0.2493
39
t Value Pr> t
15.887 -4.6506 3.79E-06
0.033101 13.195 1.41E-36
0.096423 -1.2197
0.22289
0.22606 4.1345
3.88E-05
0.027592 1.971 0.049021
1.0534 7.717 3.05E-14
1.2613 3.2422 0.001228
Adjusted R-
Squared
0.24447](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5b1907b1-a684-4a7a-a6d2-eae182fd8cd2%2Fa37493e5-097c-4e5a-8704-3bb7c405138e%2Fqttbe2n_processed.png&w=3840&q=75)
Transcribed Image Text:In a study by the Child Health and Development Studies, all pregnancies between 1960 and
1967 among women in the Kaiser Foundation Health Plan in the San Francisco East Bay area
were reviewed. The collected information included:
.
.
.
.
●
The weight of the infants in ounces (bwt)
The length of pregnancy in days (gestation),
The mother's age in years (age),
The mother's height in inches (height),
The mother's pregnancy weight in pounds (weight),
Whether the child was the first born (first_pregnancy), and
Whether the mother was a smoker (smoke).
The following tables are generated by Rguroo's linear regression analysis performed on part of
the data:
Cases Used in the Analysis
Data Used
Number of cases read
Number of cases used in analysis
Number of incomplete cases
(omitted)
Term
(Intercept)
gestation
age
height
weight
smoke Yes
first_pregnancy Yes
Residual Standard
Error
Regression Coefficients Estimates
Coefficient Standard
Estimate
Error
-73.887
0.43676
-0.11761
0.93463
0.054383
8.1294
4.0893
No.
R-
Squared
980
941
Model Summary: Coefficient of Determination (R-
Squared)
DF
15.6 934
0.2493
39
t Value Pr> t
15.887 -4.6506 3.79E-06
0.033101 13.195 1.41E-36
0.096423 -1.2197
0.22289
0.22606 4.1345
3.88E-05
0.027592 1.971 0.049021
1.0534 7.717 3.05E-14
1.2613 3.2422 0.001228
Adjusted R-
Squared
0.24447
![18. Interpret the slope estimate for "gestation"? (Be sure to include units.)
19. What is the estimated weight of the third baby for a 25 year old mother who delivers her
baby after 285 days of pregnancy, if she is a smoker, 63 inches tall, and weighs 140
pounds before delivery? (Show all work.)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5b1907b1-a684-4a7a-a6d2-eae182fd8cd2%2Fa37493e5-097c-4e5a-8704-3bb7c405138e%2F8116dkj_processed.png&w=3840&q=75)
Transcribed Image Text:18. Interpret the slope estimate for "gestation"? (Be sure to include units.)
19. What is the estimated weight of the third baby for a 25 year old mother who delivers her
baby after 285 days of pregnancy, if she is a smoker, 63 inches tall, and weighs 140
pounds before delivery? (Show all work.)
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