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March 22nd, 2014, 04:43 AM  #1 
Newbie Joined: Dec 2012 Posts: 17 Thanks: 0  Interpreting Routput (multiple regression)
Hi, I'm doing some statistics in Rstudio but i'm having troubles interpreting the output. Can someone help me (see output 1 below)? 1) What is the difference between the pvalue at the bottom right and the pvalue after each variable? 2) Which nulhypothesis and alternative hypothesis are used in the ttest to generate these pvalues? 3) At a significance level of 0.05, does this mean that only the intercept, population and murder are significant? Does this mean that they are significantly correlated with the expected duration of a life (Life.Exp)? So you could make this model: Life.exp = 7.094E+01 + 6.249E05(population)  3.319E01(murder) 4) What happens if the pvalue of the intercept is large (example: 0.267 > 0.05)? How do I have to interpret that (see second output)? 5) What to do if the pvalue at the bottom right is large?? Thanks!! Since an error occurs trying to upload attachments on this site, I uploaded the output on an other site: http://postimg.org/image/bhuqkpuar/ (output 1) http://postimg.org/image/6uxvaflpf/ (output 2) 

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interpreting, multiple, regression, routput 
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