Is my answer correct

1+1=11

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.

Summary statistics given for independent simple random samples from two populations. use the pooled t-interval procedure to obtain specified confidence interval. x1=71.6, s1=3.9, n1=11, x2=67.9, s2=3.4, n2=9 determine a 99% confidence level.

Me because i don't understand how to do it.: )