You might also start by listing the files in your working directory

Start by examining the data to check for problems.

OK, we fit our model. Now what?

Interactions allow us assess the extent to which the association between one predictor and the outcome depends on a second predictor. For example: Does the association between expense and SAT scores depend on the median income in the state?

Plot the data to look for multivariate outliers, non-linear relationships etc.

Load the National Health Interview Survey data:

The paper should be approximately 10-15 pages in length. If it ismuchshorter, it should be very good. If it is much longer, it should beveryimportant. Unless there are reasons for doing otherwise, the best styleto use in the final write-up of the econometric project is that of anarticlein a scholarly journal, a style that is both clear and brief, thoughneversacrificing clarity for the sake of brevity. The following outline issuggestedfor your paper:

Again, make sure to tell R which variables are categorical by converting them to factors!


Discuss the nature and objectives of the topic, provide a generaldescriptionof the scope of the model, and the hypotheses to be tested and/orpoliciesto be evaluated. Here you should motivate your paper by explaining whythe issues you are studying are important.

Try adding region to the model. Are there significant differences across the four regions?


"Demand for and Supply of Higher Education"

A Past Life Regression session will help you to uncover the most fascinating parts of who you are. For example someone carrying excessive weight in this life 9 Jan 2015 What would you like to explore, in order to enhance your life? An experienced, professional hypnotherapist (Certified in Clinical Hypnotherapy, Judith Gusky Trained and certified Past-Life Regression Therapist. relaxation and meditative techniques (some using hypnosis) and guided questioning to This may be triggered by an event, such as visiting a place where one has lived in a past life. Past life memories may also appear in dreams or during meditation 14 Nov 2014 A super tool to meditate with, its two points connect the past & the present. During this exercise it can bring insight into how our present life is

"Differential Growth in U.S. Cities"

Use the NH11 data set that we loaded earlier. Note that the data is not perfectly clean and ready to be modeled. You will need to clean up at least some of the variables before fitting the model.

"Discrimination in the Retail Food Markets"

National Statistical Abstracts, Statistical Yearbooks, orStatisticalHandbooks, published annually by most major countries provide bothsummarystatistics and references to primary sources. For the United States,thebest starting point for the acquisition of relevant data is theStatisticalAbstract of the United States which is published annually.

A short section on how to find more help with R

Select one or more additional predictors to add to your model and repeat steps 1-3. Is this model significantly better than the model with metro as the only predictor?

"The Effect of Unemployment on Crime"

Select one or more additional predictors to add to your model and repeat steps 1-3. Is this model significantly better than the model with metro as the only predictor?