A laboratory tested twelve chicken eggs and found that the mean
amount of cholesterol was 185 milligrams with s = 17.6 milligrams.
Construct a 95% confidence interval for the true mean cholesterol
content of all such eggs.

Select one:

a. 173.9 mg < μ < 196.1 mg

b. 173.8 mg < μ < 196.2 mg

c. 174.6 mg < µ < 195.2 mg

d. 175.9 mg < μ < 194.1 mg

e. 173.7 mg < μ < 196.3 mg