A random sample of size 9 is taken from a normal distribution with population variance 36 and sample mean is 120, find a 95% confidence interval for the mean of the distribution? (116.08 , 120.92) O...

Extracted text: A random sample of size 9 is taken from a normal distribution with population variance 36 and sample mean is 120, find a 95% confidence interval for the mean of the distribution? (116.08 , 120.92) O b. (118.08 , 123.92) (106.08 , 113.92) O d. (116.08 , 123.92) O a. Oc.