A and D well in experiment number one and

experiment number two A is held constant and D is held constant so

those are the two that we're going to choose to determine the power y.

I've got an empty space over here for me to work on for

y I'm going to look at experiments, one, and two, I, again,

am going to do a ratio of rates for those two experiments.

Let's look at the rates.

Well, they're both 1.5, for the two experiments.

See, 1.5, 1.5.

So, that's easy enough, ratio rates at 1.5,

times to the minus two 1.5 times 10 minus 2, that's a value of 1.

We're also going to do a ratio of the concentration of B,

that's what we're trying to find a power for is B.

So we come over here and we see that B is going from, 0.1 to 0.05 or

the other way round really won't matter but I would larger over small.

0.1, 0.05 and we see we have a double in.