4. A major company would like to assess the impact of using a professional trainer to conduct a confidence-building workshop with its salespeople. A sample of 16 workers is obtained. Half (n3) at...
4. A major company would like to assess the impact of using a professional trainer to conduct a confidence-building workshop with its salespeople. A sample of 16 workers is obtained. Half (n3) attend the workshop and the other half (n 8) serves as a control group. Two weeks later, each of the participants is given a questionnaire measuring the level of self-confidence. The data are as follows: Workshop Control:s M=17.5 M=22.7 SS- 100 SS- 124 Use the sample data to construct an 80% confidence interv between the control group and the workshop conditions. al for the mean difference in confidence
4. A major company would like to assess the impact of using a professional trainer to conduct a confidence-building workshop with its salespeople. A sample of 16 workers is obtained. Half (n3) attend the workshop and the other half (n 8) serves as a control group. Two weeks later, each of the participants is given a questionnaire measuring the level of self-confidence. The data are as follows: Workshop Control:s M=17.5 M=22.7 SS- 100 SS- 124 Use the sample data to construct an 80% confidence interv between the control group and the workshop conditions. al for the mean difference in confidence