You want to compute a 80% confidence interval for the mean of a population with an unknown population standard deviation. The sample size is 25. What will be the degrees of freedom?

A. True. The inverse function undoes whatever the F(x) function does.

B. True. The domain of the original becomes the range of the inverse, and vice versa. In other words, the domain and range swap.

C. False. This contradicts what was mentioned in choice B above.

D. False. Similar reasoning as choice C.

E. True. Similar reasoning as choice B.

F. True. This is similar to choice A. The order of the original and the inverse does not matter.