if a population is significantly affected what is the mean test of the prevalence of a disease in each population? are chi squared tests valid are the results of the chi squared test valid? which population test shows the most affected by a disease what test is used to determine whether a sample is significant which population was most affected by an outbreak of a disease? what is the significance of each population what test would determine if a population is significant what is the significance of testing a population? what is the significance of testing the population? are test of significance valid what is population c vs population a in a population are chi squared results valid what is significant about population a or b what is the test significance population differences spss results how to determine population vs population population a is significant how to find if population is significant in statistics what is the significance of a population