Reading Assignment: Chapter 12 (12.2) and supplementary notes (section 3) posted in Brightspace. Question #1 (10 marks) ls smiling independent of age? Randomly selected people were observed for about 10 seconds in several public places, such as shopping malls and restaurants, to see whether they smiled during this observation period. The following contingency table shows the results for different age groups. Age Group 510 11-20 21-40 41-60 261 Smile 1131 1MB 1608 937 522 No Smile 118? 2020 3038 2124 1509 Use the methodology and techniques presented in lectures 12 to 14 to conduct bivariate analysis of these data. Include side-by-side bar charts; carry out the chi-square test for independence using four steps. Clearly state your conclusions in context and be sure to include numeric measures (e.g. proportions or percentages) with your statements. Copying on homework assignments will lead to the mark for that assignment being shared by all students involved in the copying the first time it happens. After that, all those involved will get zero. Serious incidents of cheating will be reported to the ofce of Student Conduct & Academic Integrity. Homework questions from the textbook (ESBE 9wI edition): Chapter Question # {4 marks each) 4 27, 31, 37