Which type of confidence interval should you use in this situation? A sample of 6 adult elephants had an average weight of 12,200 pounds, with a sample standard deviation of 200 pounds. Find the 95% confidence interval of the true mean.

Question options:

1)	a confidence interval for the mean using a table value from the standard normal distribution.

2)	a confidence interval for the mean using a table value from the t distribution.

3)	a confidence interval for a proportion using a table value from the standard normal distribution.

4)	a confidence interval for proportion using a table value from the t distribution.

5)	none of the above.