Soda cans of a certain kind are labeled as containing 12 ounces. a quality control inspector believes that the mean weight may be more than this, so she performs a hypothesis test of h0: mean = 12 versus h1: mean > 12. she rejects the null hypothesis. which of the following is an appropriate conclusion? a. there is not enough evidence to conclude that the mean weight of the soda in the cans is greater than 12. b. we conclude that the mean weight of soda in the cans is greater than 12.

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.