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

Under the standard cost method which is also referred as the standard cost method ,stock receipts are assigned a standard cost. Any variations between the actual cost and standard

Examine the given statement, then express the null hypothesis H0 and the alternative hypothesis H1 in symbolic form. The mean weight of women who won a beauty pageant is equal t

Why are graphs and tables useful when examining data? A researcher is comparing two middle school 7th grade classes. One class at one school has participated in an arts program

Bernoulli's Theorem If a trial of an experiment can result in success  with probability p and failure with probability q (i.e.1-p) the probability of exactly r success in n tri

Assume that the pulley at A is a small frictionless pulley. The cord AB is only allowed to support a maximum tension in Newtons as given in P4, and the cord supporting the block ca

it is said that management is equivalent to decision making? do you agree? explain

Grouped data  For grouped data, the formula applied is  σ = Where f = frequency of the variable, μ= population mea

differance b/w big M mathod and two phase mathod

Replacement times for CD players are normally distributed with a mean of 7.1 years and standard deviation of 1.4years. Find the probability that a randomly selected CD player will