Identify all of the necessary assumptions for a significance test for comparing dependent means. Group of answer choices Random Samples or Random application of treatments Both sample sizes are greater than 30 or Both population distributions could be Normally Distributed Quantitative Data n is greater than or equal to 30 OR Population of Differences could be Normally distributed. At least 15 successes and 15 failures in both groups Categorical Data

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.