Please help with homework problem.

A study examined the effect of protein consumption on weight gain in rats. Investigators took 14 female rats and randomly assigned 7 to a lowprotein diet and 7 in a highprotein diet. After 60 days, the weight gained by each rat was recorded (in grams). Here are the summary ndings, displayed as \"mean (standard deviation)\": Low-protein diet Hi gh-protein diet 101.3 (20.6) 127.5 (21.1)| Find a 95% confidence interval for \"high \"my. Consider high as group 1 and low as group 2 FD. 1.9 to 50.5 grams. A 15.1 to 37.3 grams. A 20.6 to 21.1 grams. A 101.3 to 127.5 grams