A random sample of 16 lactase enzyme tablets for lactose intolerant dogs has a mean lactase content of 80 mg, with a sample standard deviation of 10 mg. Assume that the lactase content in the tablets is normally distributed. Construct a90%confidence interval for the true mean lactase content of these tablets.

Question 4 options:

75.89 mg - 84.11 mg

75.62 mg - 84.38 mg

78.90 mg - 81.10 mg

62.47 mg - 97.53 mg