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21. The following experiment was conducted to see if the color of paper used for an exam has in impact on the exam scores. Students were randomly placed into one of four groups, each receiving a different color of paper. The following exam scores were collected (possible scores were 0 to 100. The following data was collected. White Paper 87 84 78 79 89 Red Paper 72 68 70 74 73 Yellow Paper 80 82 78 79 81 Salmon Paper 89 91 93 90 92 a) Calculate the mean and standard deviation for each group (2 pts) White Paper Mean $3.4, Standard Deviation-4.82 b. Red Paper Mean 71.4, Standard Deviation- 2.41 e Yellow Paper Mean-80, Standard Deviation 158 d Salmon Paper Mean-91, Standard Deviation-1.58 b) Create a bar graph showing the mean and standard deviation for each group (2 pts) e) Conduct an ANOVA to determine if there is a difference between these four groups (usc Tables 11.3 and 114 as guides). Be sure to make an ANOVA summary table. (2 pts) d) Do a Tukey HDS test to determine which means are different from each other. (2 pts) e) Calculate the effect sized for this staly (2) Calculate the effect size f for this study (2 pts) Write a short paragraph explaining the results and draw a conclusions about the different colors of paper used for giving exams. 2 pt)