Dajuan is studying the effect of the amount of lactobacillus bacteria in yogurt on its viscosity. He chooses two amounts of lactobacillus bacteria, the standard amount and an increased amount. He makes 75 batches of yogurt at each level and tests their viscosity. In this situation, what is the amount of lactobacillus bacteria called?(1 point)

Responses

the population
the population

the treatment
the treatment

the independent variable
the independent variable

the dependent variable