Perform multiple regression, Basic Statistics

Assignment Help:

You have collected data on 4 continuous variables (diastolic BP, age, weight, and average number of minute of exercise per week)you think may be related to total cholesterol levels. Use the attached file cholesterol.xls to perform research on this question.

The regression model

a.) Use Excel to perform a multiple regression using all the independent variables. (There is no answer to give for this step.)

b.) Write the regression model based on your results (include both your significant and non-significant betas in this model).

c.) Report your intercept. Is the intercept meaningful? Why or why not?

d.) Report your betas (slopes). Which of these betas is significant?

e.) Give interpretations for each of your significant betasin terms of the original research question.

Be specific and include appropriate units in your interpretations!

As an example, if your independent variable was weight and your beta for weight was 5, you should say, "For every 1 pound increase in weight, total cholesterol increases by 5 mg/dL, controlling for diastolic BP, age, and average minutes of exercise per week." Don't just say "For every unit increase in weight...".

You have reason to suspect that there may be interaction between the diastolic BP and Minutes of Exercise.  In your Excel file, construct an interaction term for these two variables and rerun the multiple regressionwith the interaction term included.

f.) Report the beta for interaction. Isthere significant interaction between A and B?

g.) Should you leave the interaction term in the model? Why or why not?


Related Discussions:- Perform multiple regression

Difference in the loss in man-hours - accidents in firms, An occupational h...

An occupational health inspector was interested in determining whether there is a difference in the loss in man-hours due to accidents  by introducing a new safety programme.  The

Optics, A thief is running away in his car with a velocity of 20m/s.A polic...

A thief is running away in his car with a velocity of 20m/s.A police jeep is following him which is sighted by the thief in his rearview mirror, a convex mirror of focal length 10m

Incomplete accounts, HOW TO PREPARE INCOMPLETE ACCOUNTS CORRECTLY?

HOW TO PREPARE INCOMPLETE ACCOUNTS CORRECTLY?

Major advantages of the single entry system, What are the major advantages ...

What are the major advantages of the Single Entry System? Ans. A Single Entry system is considered to be the most simplest method to record the financial transaction, only cash bo

Texas.., what is the Texas state gemstone

what is the Texas state gemstone

What is budget control, Definition of budget control as management of costs...

Definition of budget control as management of costs & expenses with examples. Budget control is the management of costs & expenses in accordance with an underlying budget.

Accounting Assumption, What are the consequences of non-compliance to each ...

What are the consequences of non-compliance to each accounting concepts?

Generate a hypothesis test , An instructor wants to determine which of his ...

An instructor wants to determine which of his students are A students and which are B students (this is a graduate course, so clearly all the students are either A or B stu

Recruitment process process map, What are the steps in a recruitment proces...

What are the steps in a recruitment process and who are responsible for each step?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd