A health administration recommends that individuals consume 950 mg of calcium daily. After an advertising campaign aimed at male​ teenagers, a dairy association states that male teenagers on average consume more than the recommended daily amount of calcium. To support this​ statement, the association obtained a random sample of 40 male teenagers and found that the mean amount of calcium consumed was 965 ​mg, with a standard deviation of 120 mg. Is there significant evidence to support the statement of the association at the alpha equals0.05 level of​ significance

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.