Question 17 (0.5 points) Saved The chi-square is a powerful test, but requires that the data set used be large and contain nominal or ordinal data (like number of subjects) but not ratio or interval dat (like blood glucose or heart rate) True False Question 18 (0.5 points) Saved A p-value is the probability that a hypothesis is correct. True False Question 19 (0.5 points) Increasing the number of offspring in a mapping experiment will not lead to a more accurate map distance. True FalseQuestion 20 (0.5 points) The heritability of a trait is defined as how much a trait is expressed due solely to the level of gene expression. O True O False