Doctors are interested in seeing what type of arch support the most to alleviate foot pain. twenty five volunteers are asked to wear one type of arch support one week and rank their level of pain on a scale from one to ten. the next week, they wear another type of arch support and once again rank their pain. the type of arch support that each participant used the first week was randomly selected from the two types. which arch support is better? what type of test would they conduct to test this claim? a. comparing means from two independent samplesb. one proportionc. comparing proportions from 2 independent samplesd. one meane. comparing proportions from dependent samplesf. comparing means from dependent samples

Ascientist studied a population of workers to determine whether verbal praise and/or tangible rewards affect employee productivity. in the study, some workers were offered verbal praise, some were offered tangible rewards (gift cards, presents, and some were offered neither. the productivity of each participant was measured throughout the study by recording the number of daily tasks completed by each employee. which inference might the scientists make based on the given information? a.) the number of daily tasks completed by each employee may influence the dependent variable, which is whether the employee receives verbal praise, tangible rewards, or neither. b.) verbal praise and/or tangible rewards may influence the independent variable, which is the number of daily tasks completed by each employee. c.) verbal praise and/or tangible rewards may influence the dependent variable, which is the number of daily tasks completed by each employee. d.) the dependent variables, which are verbal praise and tangible rewards, may influence the number of daily tasks completed by each employee.