f the point estimate for the sample mean difference is 3,and the 95% confidence interval is + or - 3 points.

(hint:it does not matter what kind of T test this is.The mean difference was 5 points, for whatever test it was.)

This means

a.there is not enough information to answer this question

b.the true population mean differenceis 3

c.the true population mean is between 2and 4

d.It is 95% likely the true population mean difference is between 0 and 6.