Introduction

Answers

  1. False, the omnibus null hypothesis is that all population means are the same.

  2. True, an analysis of variance (ANOVA) is most often used to determine if there are differences among 3 or more group means. However, when there are more than 2 groups, an ANOVA does not provide information regarding where the differences lie.

  3. True, the Tukey HSD controls the Type I error rate and is valid without first running an ANOVA.

Callback before_footer in local_aigrade component should be migrated to new hook callback for core\hook\output\before_footer_html_generation
  • line 7225 of /lib/moodlelib.php: call to debugging()
  • line 7292 of /lib/moodlelib.php: call to {closure}()
  • line 71 of /lib/classes/hook/output/before_footer_html_generation.php: call to get_plugins_with_function()
  • line 987 of /lib/classes/output/core_renderer.php: call to core\hook\output\before_footer_html_generation->process_legacy_callbacks()
  • line 154 of /mod/book/view.php: call to core\output\core_renderer->footer()