Tilda took a random sample of n = 17 redwood trees in a park she oversees and had their heights measured. The heights were roughly symmetric with a mean of = 60 meters and a standard deviation of
Sy = 6.1 meters. She wants to use this data to construct a t interval for the mean height of all the
redwood trees in her park with 95% confidence.
Con
What critical value t' should Tilda use?

So what is the question

See diagram.we use washers to get the area and we will be integrating with respect to xouter radius is the  distance between y = e^x and y = -1    inner radius of washer is the distance between y = 1 and y = -1    the area of one cross-section of a washer is    solid lies between x = 0 and x = 2. the volume is    if you need this expanded, then    the question doesn't say to evaluate, so we're done.   

Yep i just took this test

Iwould say b but i’m not so sure