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In the experiment with Kentucky millipedes, researchers measured the upper thermal tolerance (CTmax) of millipedes raised on the wood and leaves or fruit and vegetable diet. Which variable is the response variable? 0 Diet type 0 CTmax value 0 Millipedes O The group in which the millipedes were raised In the experiment with Kentucky millipedes, researchers randomly assigned millipedes to the different diet groups. This study design is: 0 experimental O observational Based on the scatterplot, which of the following statements is true? [Select all that apply] . . 06 0.4 Proportion of males with forceps . . 0.0 0 20 40 60 Earwig density (number per trap) We can appropriately conduct a correlation test O This figure shows bivariate normality for X and Y O We can appropriately perform a Spearman's rank non-parametric test O We should try to transform our data before conducting a correlation testWhat is the primary benefit of randomization? 0 It reduces associations between confounding variables and the treatment variable. 0 It reduces the difference between treatments. 0 It reduces bias by minimizing the values of the confounding variables. 0 It reduces bias by making sure that the treatment variables are the same in all treatments. If the DNA sequences of a bunch of individuals from a family with a history of a specific genetic disease are compared to DNA sequences in a data base, what limits the power of tests to discover the cause of the disease? 0 The family members aren't independent, reducing the effective sample size. The family members may have different sequences from the individuals in the database. 0 The individuals in the databse are from different famlies, reducing the effective sample size. The individuals in the database may have different sequences from the indivudals in the database. Consider an experimental design for an experiment measuring how diet affects the thermal tolerance of millipedes in Kentucky. The researchers measured the upper thermal tolerance limit of millipedes raised on different diets: 42 were raised on decaying wood and leaves and 28 were raised on fruits and vegetables. Millipedes were raised in groups of 7 in the same container How many independent measures are there in each group? O 42 wood and leaves, 28 fruit and vegetables 0 21 wood and leaves, 14 fruit and vegetables 0 7 wood and leaves, 7 fruit and vegetables 0 6 wood and leaves, 4 fruit and vegetables