Which scenarios use the correct mean, population (μ), or sample (x) to represent the calculation? Check all that apply. A café owner wants to determine the average pay per week for all his employees. The mean should be calculated using population (μ).

A scientist wants to determine how nitrogen levels affect the average height of some of the bean sprouts grown in his greenhouse. The mean should be calculated using population (μ).

A psychology student surveys Dr. Kohl’s 10 a. m. English students about the number of hours they spend studying each week. The mean should be calculated using sample (x).

A cattle rancher weighs each of his cattle every six months. He calculates the average weight. The mean should be calculated using population (μ).

A running shoe distributor wants to know the average monthly inventory of a particular brand of shoe. He compiles the data from all the stores. The mean should be calculated using sample (x).