Question

State the null and alternative hypotheses for the situation described below for a statistical test. Your answer should be an expression composed of symbols: Testing to see if average sales are higher in stores where customers are approached by salespeople than in stores where they aren't. Let group 1 be the group of stores where customers are approached by salespeople and let group 2 be the group of stores where customers are not approached by salespeople.

Answer 1

Null: mu1=mu2
Alternative: mu1>mu2