multi linear regression

1. Multiple Linear Regression Assumptions

Hi guys! I am gonna model multiple linear regression. Do you think that normality of residuals assumption is met according to the P-P plot? Also, consider the homoscadasticity assumption according to the scatter please. I am writing my Bsc. thesis, what should I do if these two assumptions...
2. compare variables

hello everyone, can anyone help me on how to do regression analysis using the equation below using stata. Thanks
3. Interpret the root of an independent variable

Hello everybody, I have a regression model of the following form to investigate: y =b_0 + b_1 * x_1 + b_2 * sqrt(x_2) Now I want to give an interpretation of the model and I do not know how to interpret the influence of x_2 respectively b_2. The formulation for x_1 would be: An additional...
4. SPSS: transforming variables?

I am doing a single linear regression and multiple regression, but I have a question about my independent variable. My independent variables (X) are between 0 and 100. Some of my hypothesizes is that "A high X will lead to a lower Y" High X = value above fifty to hundred and Low x =...

I have attached my practice sample final for my college statistics course on linear regression. All of the answers are multiple choice, and I need help finding the right answers for questions 5-39 as soon as possible. Please, please, help me if you can, as soon as you can! I need the right...
6. Finding correlation of independent variables with a response variable in R

I have a set of independent variables X1, X2, X3,..., Xn and a response variable Y. I want to perform some form of data analysis in R so that I only select a subset of those independent variables that have more significant effect on the response variable Y. I want to generate results that should...
7. homoscedasticity violated in more ways than one?

Hello I need some advice, I am using multiple regressions in SPSS. My data is not entirely normal in its distribution but not bad enough to make me wince with fear. All my variables are measured upon a 1-7 likert scale. However upon running my regressions I am getting two problems, one of which...
8. Which analysis should i use? Rgeression or ANOVA or any ....

I am doing one analysis in Natural Science discipline: I have lots of data but know I don't know how can I analyze them. As I am not statistician: Could you please give an idea about what you think... See below the plan: 6xBlank (Control) Sampling purpose 1 Measures(GPD, VFA, NH4, N...
9. Datasets for Multiple Linear Regression - How To get the Raw Data ?

Hello everyone. kindly need ur help.. where can i get the raw data for multiple linear regression. the data should have : Atleast (5 variable) Atleast (50 Observation) include qualitative & quantitative data. Thanx! Malaysia Boleh~!!
10. Multi linear regression

Hello everyone, I am new here (and to stats in general). Anyway I am working on a project where I want to predict the value of an outcome and I have a few variables known beforehand that might be related. This is how I planned to go about finding a formula that will more or less predict that...