Hi Everyone, am so Privileged and happy to be part of this great Forum. How are you all doing? Please, may I ask;
I am a PhD student, my Thesis Topic is Crisis communication and Management by Airlines in Europe and Africa in the face of Covid-19.
My Population entails those who flew only during Covid-19 in Europe and Africa, and I have being asked to distribute 400 questionnaires, but I know that I have to use a formulae to be able to obtain the sample size of 400 responses. Which formula do I use?,please, thanks.