Friedman test is used to assess whether there are any statistically significant differences between the distributions of three ormore paired groups. It's recommended when the normality assumptions of the one-way repeated measures ANOVA test isnot met or when the dependent variable is measured on an ordinal scale. Using R for data analysis, we ll use the self esteemscore dataset measured over three time points. The data is available in the datarium package. At 0.05 level of significance,test whether the self esteem score was statistically significantly different at the different time points during the diet. R codeand its output is given below.R code and its outputdata ("selfesteen", package = "datarium")head (selfesteem, 3)# + A tibble: 3 x 4id t1t2t31 4.012 2.563 3.245.187.116.319.786.914.44selfesteem gather (key = "time", value = "score", t1, t2, t3) $8convert_as_factor (id, time)head (selfesteem, 3)+# + A tibble: 3 x 3idtime score** 11ti4.01* 2 24 33t1tl2.563.24selfesteem group_by (time) %*get_summary_atats(score, type = "common")# # A tibble: 3 x 11timevariableminmax medianigr meansdcinse # 1 t1# 2 t2+# 3 t310102.053.914.003.21 0.571 3.14 0.552 0.174 0.3954.60 0.893corescore6.914.93 0.863 0.273 0.617Score10 6.319.787.46 1.747.64 1.140.361 0.817res.fried % friedman_test (score - time lid)res.fried+# + A tibble: 1 x 6p method 2 0.000112 Friedman testn statisticdf-y.4* # 1 score 1018.2Which of the following is the correct of the result of the data analysis using R?I. The self esteem score was not statistically significantly different at the different time points during the diet.II. The self esteem score was statistically significantly different at the same time points during the diet.III. The self esteem score was statistically significantly different at the different time points during the diet.a I onlyb. II onlyc. Both I and IId. III only

Question

Friedman test is used to assess whether there are any statistically significant differences between the distributions of three ormore paired groups. It's recommended when the normality assumptions of the one-way repeated measures ANOVA test isnot met or when the dependent variable is measured on an ordinal scale. Using R for data analysis, we ll use the self esteemscore dataset measured over three time points. The data is available in the datarium package. At 0.05 level of significance,test whether the self esteem score was statistically significantly different at the different time points during the diet. R codeand its output is given below.R code and its outputdata ("selfesteen", package = "datarium")head (selfesteem, 3)# + A tibble: 3 x 4id t1t2t31 4.012 2.563 3.245.187.116.319.786.914.44selfesteem <- selfesteem >gather (key = "time", value = "score", t1, t2, t3) $>8convert_as_factor (id, time)head (selfesteem, 3)+# + A tibble: 3 x 3idtime score** 11ti4.01* 2 24 33t1tl2.563.24selfesteem >group_by (time) %>*get_summary_atats(score, type = "common")# # A tibble: 3 x 11timevariableminmax medianigr meansdcinse # 1 t1# 2 t2+# 3 t310102.053.914.003.21 0.571 3.14 0.552 0.174 0.3954.60 0.893corescore6.914.93 0.863 0.273 0.617Score10 6.319.787.46 1.747.64 1.140.361 0.817res.fried <- selfesteem >% friedman_test (score - time lid)res.fried+# + A tibble: 1 x 6p method 2 0.000112 Friedman testn statisticdf-y.4* # 1 score 1018.2Which of the following is the correct of the result of the data analysis using R?I. The self esteem score was not statistically significantly different at the different time points during the diet.II. The self esteem score was statistically significantly different at the same time points during the diet.III. The self esteem score was statistically significantly different at the different time points during the diet.a I onlyb. II onlyc. Both I and IId. III only

Accepted Answer

Given information:
The output of Friedman test is given.