A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing
 9 months ago
PLEASE HELP!!! WILL GIVE MEDALS FAST!!! Suppose IQ scores were obtained from randomly selected siblings. For 20 such pairs of people, the linear correlation coefficient is 0.913 and the equation of the regression line is ybar = 15.61 + 1.16x, where x represents the IQ score of the older child. Also, the 20 x values have a mean of 97.05 and the 20 y values have a mean of 97.4. What is the best predicted IQ of the younger child, given that the older child has an IQ of 98? Use a significance level of 0.05.
The best predicted IQ of the younger child is __.
 9 months ago
PLEASE HELP!!! WILL GIVE MEDALS FAST!!! Suppose IQ scores were obtained from randomly selected siblings. For 20 such pairs of people, the linear correlation coefficient is 0.913 and the equation of the regression line is ybar = 15.61 + 1.16x, where x represents the IQ score of the older child. Also, the 20 x values have a mean of 97.05 and the 20 y values have a mean of 97.4. What is the best predicted IQ of the younger child, given that the older child has an IQ of 98? Use a significance level of 0.05. The best predicted IQ of the younger child is __.

This Question is Closed

StClowers
 9 months ago
Best ResponseYou've already chosen the best response.0this is the last one i need...

coureges
 9 months ago
Best ResponseYou've already chosen the best response.1by the same logic as earlier:y=15.61+1.16(x), x=98, thus y=98.07. a 5% confidence interval would there for be (93.1668,102.9735)

StClowers
 9 months ago
Best ResponseYou've already chosen the best response.0so then would the younger child be 102.9?

coureges
 9 months ago
Best ResponseYou've already chosen the best response.1I can say with 95% confidence that he could have the value of 102.9, if you want a single answer use 98.07.
Ask your own question
Ask a QuestionFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.