mathstatistics
posted by Mike .
The following risk ratios give the increased risk for various diseases comparing two groups (exposed vs. unexposed).
a. 2.5 (2.0, 3.0)
b. 1.03 (1.02, 1.04)
c. 6.0 (.85, 9.8)
d. 0.98 (0.88, 1.08)
e. 0.20 (.05, 1.05)
Which risk ratios are statistically significant at the 0.05 level? You may choose more than one.

With your limited data, it is hard to tell. I don't know what the numbers represent. They need to be labeled better.

a. 2.5 (2.0, 3.0)
c. 6.0 (.85, 9.8)
e. 0.20 (.05, 1.05) 
a and b are obove 1. The rest are between 1. answer A and B