5. Among healthy people, the mean (fasting) blood glucose level is 90 mg/dL, with a standard deviation of 9 mg/dL. What are the levels at the high and low end of the 95.4% confidence interval? Recently, I had my blood tested and got a result of 100 mg/dL. Is this result significant at the .05 level? My result was flagged as being potentially indicative of my being "pre-diabetic" (high blood glucose is a marker for diabetes). My doctor said this is a new standard, since diabetes is on the rise lately, but I shouldn't worry because I wasn't overweight and was otherwise healthy. Compared to a testing regime that only flags patients outside the two standard-deviation confidence interval, does this new practice of flagging results at 100 mg/dL increase or decrease the sensitivity of the diabetes screening? Does it increase or decrease its specificity