20. The following experiment was conducted to see if the kind of feedback beginning baseball players receives has an imp

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20. The following experiment was conducted to see if the kind of feedback beginning baseball players receives has an impact on their fielding skills. For 30 minutes the kids practiced fielding the ball. During this time one group received no feedback, on group received verbal praise for doing a good job, one group received verbal punishment, and the fourth group received an M&M for every properly executed fielding of a ball. After the 30 minutes of training raters observed them fielding balls and rated how well they did on a score from 0 (everything done wrong) to 20 (perfectly fielded ball). The following data was collected. No feedback 746 8 9 5 Verbal Praise 12 14 15 11 13 Verbal Punishment 11 10 12 9 8 M&M's 14 17 18 15 16 a) Calculate the mean and standard deviation for each group (2 pts) b) Create a bar graph showing the mean and standard deviation for each group. (2 pts) c) Conduct an ANOVA to determine if there is a difference between these four groups. (use Tables 11.3 and 11.4 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 size d for this study. (2 pts) f) Calculate the effect size f for this study. (2 pts) g) Write a short paragraph explaining the results and draw a conclusions about the different forms of reinforcement used for teaching basic fielding skills. (2 pts)
3:58 7 ◄ Search Answer 1 of 1 Mean of no feedback = Mean of verbal praise = 13 Mean of verbal punishment = 11+10+12+9+8 5 5 4.3 7+4+8+9+5 5 12+14+15+11+13 5 = 10 14+17+18+15+16 5 12 14 15 11 13 2.5 Mean of M & M's= = 16 No feedback Verbal Praise Verbal Punishment M&M's 7 4 8 9 2.073644135 1.58113883 var of no feedback = 2.0736 var of verbal praise = 1.5811 var of verbal punishment = 1.5811 var of M & M's = 1.5811 LTE 09-07-2022 21:21:58 Done 11 10 12 9 8 2.5 = 6.6 Source DF SS MS FP Factor 3 243.60 81.20 27.53 0.000 Error 16 47.20 2.95 Total 19 290.80 1.58113883 1.581139 Welcome to Minitab, press F1 for help. One-way ANOVA: No feedback, Verbal Praise, Verbal Punishment, M and M 14 17 18 15 16 2.5
3:58 7 ◄ Search Error 16 47.20 2.95 Total 19 290.80 Answer 1 of 1 Source DF SS MS F P Factor 3 243.60 81.20 27.53 0.000 Error 16 47.20 2.95 Total 19 290.80 S = 1.718 S = 1.718 R-Sq= 83.77% R-Sq(adj) = 80.73% c) One-way ANOVA: No feedback, Verbal Praise, Verbal Punishment, M and M ) M and M Based on Level No feedback Verbal Praise 5 13.000 1.581 --) Verbal Punishmen 5 10.000 1.581 Based on Level LTE R-Sq = 83.77% R-Sq(adj) = 80.73% Individual 95% Cls For Mean Pooled StDev N Mean StDev ---- 5 6.600 2.074 (--------) 5 16.000 1.581 Done ------------------ (----- Pooled StDev = 1.718 Here the p value is low so we conclude there is significant difference between all the three groups. d) 7.0 10.5 14.0 17.5 Individual 95% Cls For Mean Pooled StDev N Mean StDev+- No feerhack 5 AAAA9A74 toont
3:58 7 ◄ Search aj Based on Level No feedback Verbal Praise 5 13.000 1.581 Answer 1 of 1 Individual 95% Cls For Mean Pooled StDev N Mean StDev ------ 5 6.600 2.074 (--------) --) Verbal Punishmen 5 10.000 1.581 ) M and M. 5 16.000 1.581 ----) Pooled StDev = 1.718 Verbal Praise Verbal Punishmen M and M No feedback subtracted from: Lower Center Upper Verbal Praise 3.289 6.400 9.511 Verbal Punishmen 0.289 3.400 6.511 M and M 6.289 9.400 12.511 7.0 10.5 14.0 17.5 Tukey 95% Simultaneous Confidence Intervals All Pairwise Comparisons Individual confidence level = 98.87% (---------) (--------) (²) LTE -6.0 0.0 6.0 12.0 Done Verbal Praise subtracted from: Lower Center Upper Verbal Punishmen 6.111 -3.000 0.111 (-------
3:58 7 ◄ Search Answer 1 of 1 No feedback subtracted from: Lower Center Upper Verbal Praise 3.289 6.400 9.511 Verbal Punishmen 0.289 3.400 6.511 M and M 6.289 9.400 12.511 Verbal Praise Verbal Punishmen M and M -6.0 0.0 6.0 12.0 () (---------) (---------) Verbal Praise subtracted from: Lower Center Upper Verbal Punishmen -6.111 -3.000 0.111 M and M -0.111 3.000 6.111 Verbal Punishmen M and M -6.0 0.0 6.0 12.0 Verbal Punishment subtracted from: Lower Center Upper + M and M 2.889 6.000 9.111 -) -6.0 0.0 6.0 12.0 LTE Done