Welch Two Sample t-test data: sample1 and sample2 t = 2.658, df = 95.421, p-value = 0.009217 alternative hypothesis: true difference in means is not equal to 0 95 percent confidence interval: 0.01615943 0.11150922 sample estimates: mean of x mean of y 0.5585566 0.4947222
I have this result for a T test using
t.test() function in R - please correct me if I am wrong - I understand that the test shows significant difference in population for
sample2 at 95% confidence level. I also understand that the point estimate for the difference in the means of
sample2 is the
t-value = 2.658
What I don't understand is the confidence interval:
Does it say that the difference in means of
sample2 at 95% confidence level should be between
0.111 if they come from the same population?
Or does it say that the range estimate can be
0.111 units more than the point estimate at 95% confidence level.
It doesn't make sense to me.