It is desired to compare the working hours of 30 industrial engineers before and after receiving occupational safety training. The data meet the parametric assumptions. Which of the following is a statistical test that examines the measurement format of the variables to be compared, continuous quantitative data, and the difference between two dependent groups?    a) ANOVA  B) Wilcoxon  NS) None  D) Two dependent sample t-test  TO) Two independent samples t-test, that is, the significance test of the difference between the means.

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