![subject](/tpl/images/cats/mat.png)
Mathematics, 09.04.2021 01:20 flargenshpargle7423
Sir Francis Galton, a cousin of James Darwin, examined the relationship between theheight of children and their parents towards the end of the 19th century. It is fromthis study that the name "regression" originated. You decide to update his findingsby collecting data from 110 college students, and estimate the following relationship
= 19.6 + 0.73 Ã Midparh, R2 = 0.45, SER = 2.0
where Studenth is the height of students in inches, and Midparh is the average of the parental heights. Values in parentheses are heteroskedasticity robust standard errors. (Following Galton's methodology, both variables were adjusted so that the average female height was equal to the average male height.)
a. Test for the statistical significance of the slope coefficient.
b. If children, on average, were expected to be of the same height as their parents, then this would imply two hypotheses, one for the slope and one for the intercept.
i. What should the null hypothesis be for the intercept? Calculate the relevant t-statistic and carry out the hypothesis test at the 1% level.
ii. What should the null hypothesis be for the slope? Calculate the relevant t-statistic and carry out the hypothesis test at the 5% level.
iii. Can you reject the null hypothesis that the regression R2 is zero?
iv. Construct a 95% confidence interval for a one inch increase in the average of parental height.
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 15:30, evalentine843
Write the expression in simplified radical form. show all steps and work including any foil method work. (hint: use the conjugate. no decimal answers.) (9-2√3)/(12+√3)
Answers: 1
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:30, 19thomasar
Atotal of 766 tickets were sold for the school play. they were either adult tickets or student tickets. there were 66 more student tickets sold than adult tickets. how many adult tickets were sold?
Answers: 1
![image](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 00:00, hannahgracew12
Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.
Answers: 1
You know the right answer?
Sir Francis Galton, a cousin of James Darwin, examined the relationship between theheight of childre...
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
Mathematics, 25.01.2021 22:10
![Konu](/tpl/images/cats/mat.png)
Mathematics, 25.01.2021 22:10
![Konu](/tpl/images/cats/fizika.png)
![Konu](/tpl/images/cats/fizika.png)
![Konu](/tpl/images/cats/health.png)
![Konu](/tpl/images/cats/mkx.png)
Arts, 25.01.2021 22:10
![Konu](/tpl/images/cats/mat.png)
Mathematics, 25.01.2021 22:10
![Konu](/tpl/images/cats/mat.png)
Mathematics, 25.01.2021 22:10
![Konu](/tpl/images/cats/mat.png)
Mathematics, 25.01.2021 22:10
![Konu](/tpl/images/cats/himiya.png)
Chemistry, 25.01.2021 22:10