The following information was obtained from matched samples.

Individual: 1,2,3,4,5 Method 1: 7,5,6,7,5 Method 2: 5,9,8,7,6

A)The point estimate for the difference between the means of the two populations (Method 1 - Method 2) is:
B)The 95% confidence interval for the difference between the two population means is (Answer to Answer), (round to 3 decimal places):
C)The null hypothesis tested is H0: md = 0. The test statistic for the difference between the two population means is
D)If the null hypothesis is tested at the 5% level, is it rejected or not?