Answer Happy

Please solve by hand
1. Does rudeness really matter in the workplace? Studies have established that rudeness in the work- place can lead to retaliatory and counterproductive behavior. However, there has been little research on how rude behaviors influence a victim's task performance. Researchers were interested in conducting a study to investigate this phenomena. College students enrolled in a management course were randomly assigned to one of two experimental conditions: rudeness condition (16 students) and control group (16 students). Each student was asked to write down as many uses for a brick as possible in 5 minutes. For those students in the rudeness condition, the facilitator displayed rudeness by berating the students in general for being irresponsible and unprofessional. No comments were made to the students in the control group. The number of different users for a break was recorded for each of the 98 students and the data is shown below in the table. 16 21 13 20 1 920 19 10 23 16 5 4 Control group (yi): 1 24 5 Rudeness condition (Y2): 4 11 18 11 9 6 5 11 12 7 5 7 3 0 1 2 a. Conduct a statistical analysis to answer the question of interest (Does rudeness really matter in the workplace?) by comparing the number of uses for a brick recorded for each group. State the assumptions are necessary for the analysis to be valid. $63.93, s. 22.8, v1 – 12.94, y2 = 7. yi 42

b. What is the power of the test you performed in part (a)? 1.0 n-2 0.8 3 0.6 Probability of accepting H 5 0.4 20 0.2 10 30 15 40 50 75 100 1 2. 3 d c. The researchers will be conducting another study in order to increase the power of their test to at least 90%, what is the sample size they need using the information they obtained in their previous study? (effect size, that is, the mean difference between the groups and estimated standard deviation.)