Muti linear regression model problem, Applied Statistics

Muti linear regression model problem

An investigator is studying the relationship between weight (in pounds) and height (in inches) using data from a sample of 126 high school students. A simple linear regression model is used to model the relationship between weight (Y) and height (X). Partial information from the SAS PROC REG output from fitting this model is provided bellow.

a) Please complete the ANOVA table and related results by using the SAS output from PROC MEANS which gives the sample means and the sample standard deviations for the two variables involved.

b) Obtain a 99% prediction interval for the weight of a 15 years-old student who has a height of 68 inches.  Can we use our model to predict the weight of a 54 years-old teacher with a height of 68 inches? Why or why not?

c) Calculate the coefficient of correlation between weight and height. Are they positively or negative correlated?

d) How do you interpret that ? Is the result statistically significant at the 0.05 level?

Posted Date: 3/1/2013 4:41:35 AM | Location : United States







Related Discussions:- Muti linear regression model problem, Assignment Help, Ask Question on Muti linear regression model problem, Get Answer, Expert's Help, Muti linear regression model problem Discussions

Write discussion on Muti linear regression model problem
Your posts are moderated
Related Questions

A researcher was interested lowering the high school dropout level in his county. He measured the reading level of students entering middle school (based on a standard test) and th

You want to know the thoughts of air travelers in fields such as tickets, comffort, safety, securuty, services and economic growth. You are given a database and 20 questions to ask

objective of the testing stochastic regression

If the sample size is less than 30, then we need to make the assumption that X (the volume of liquid in any cup) is normally distributed. This forces    (the mean volume in the sam

Suppose that before the minimum wage law change, the underlying mean number of part-time employees per Burger King Restaurant in New Jersey was 20.3. It was thought that the increa

how can i use continuous frailty in multi state models?

To compare three brands of computer keyboards, four data entry specialists were randomly selected. Each specialist used all three keyboards to enter the same kind of text material

In the case of permanent magnet DC motor whose stator consists of a permanent magnet we can take the field current to be constant (i.e. a constant magnetic field) and it can be sho