{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Week3BMTB2304 - ADM2304 Wilcoxon Test or Type II Error Dr...

Info icon This preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
ADM2304 Wilcoxon Test & β or Type II Error Dr. Suren Phansalker Twenty adults in a random sample were asked to rate politicians in general, on a scale of 1 to 100. A median score of 50 would indicate that people thought that politicians were OK. Numbers significantly above 50 would indicate that they were thought of as being commendable and numbers significantly below 50 would indicate they were deplorable. Here are the results of the ratings. Data Display Opinion 49 27 39 75 59 67 22 61 58 60 72 62 49 48 19 32 60 80 55 68 Test the hypothesis that: k k 0 : 5 : 5 A H Md H Md = 0 0 Here the distribution is reasonably symmetrical but is not known to be normal. As such, testing the Population Median is more appropriate than testing the Population Mean. MTB > boxp c1 Boxplot of Opinion 80 70 60 50 40 30 20 Opinion Boxplot of Opinion Diagram#1 1
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon