How to answer this?

Question

The replicate results (mg/L) obtained from calcium determination of a blood sample using atomic absorption spectrophotometry (AAS) and a new colorimetric method were as following: AAS : 11.2, 11.2, 10.6, 11.2, 9.7 and 10.0 Colorimetric : 9.2, 10.5, 9.7, 11.5, 11.6, 9.3, 10.1 and 11.2 Determine whether the mean of both methods have a significant difference at 95% confidence level.

Answer 1

The simplest way is to perform a Student t-test on the data, and then use 0.05 as the level of significance in the table. If you don't know how to do a t-test, then re-post the question with that as the main query.