I am just a Hisg school student and I really dont know how to use the Probit Analysis on my Statistics page in my Research.

I am currently conducting a study on "Lethal Dose of Copper sulfate pentahydrate on Brine shrimp (Artemia salina). And I am currently stuck in my Statistics because I dont know how to use to Probit's Analysis. If someone out there is willing to help, I'll send you the data I've gathered. Thank You!