If we are interested in testing whether the proportion of items in population 1 is larger than the proportion of items in population 2, the null hypothesis should state P1 - P2 < 0

null hypothesis should state P1 - P2 > 0

alternative hypothesis should state P1 - P2 > 0

alternative hypothesis should state P1 - P2 < 0

And we have this for the model:

Now using the other point (3,500)  we have this:

We can divide both sides by 4 and we got:

And if we apply cubic root we got:

So then the model would be:

Step-by-step explanation:

For this case we want to create an exponential function given by this general expression:

And we have the following points (0.4) and (3.500). If we use the point (0,4) we have this:

And we have this for the model:

Now using the other point (3,500)  we have this:

We can divide both sides by 4 and we got:

And if we apply cubic root we got:

So then the model would be: