Re: [R] Null-Hypothesis

2009-04-08 Thread Eik Vettorazzi
Hi Benedikt in principle this is correct. A p-value less than a prespecified alpha-level leads to rejection of the null hypothesis H0. I'm a little bit puzzled about your given p-value, since actually your slopes are the same, so H0 is valid but rejected. This might be a matter of chance, but i

[R] Null-Hypothesis

2009-04-08 Thread Benedikt Niesterok
Hello R users, I've used the following help two compare two regression line slopes. Wanted to test if they differ significantly: Hi, I've made a research about how to compare two regression line slopes (of y versus x for 2 groups, "group" being a factor ) using R. I knew the method based on th