Please help me with number 15

Question Completion Status: ob. Efficiency c. Reliability d Both A and B QUESTION 15 Dividing the population into relatively homogeneous groups in order to reduce sample size is the definition of which of the following terms? O Ratio estimation MUS sampling d Difference estimation QUESTION 16 That audtor willdo which of the following when the results of samgle testing conclude that there is misstatement in excess of the tolerable misstatement? a Propose adjustments to the client Cliel Save and Submit to save and subuit,Cliek Sace All Anss to se all ansvers Save Al An 8 9