1. Chi Square: a) A human resources director wants to find out if there is a relationship with the day of the week and the number of times employees were sick on that day. She tallied the number of times 60 employees were absent on these days: Monday: 12 Tuesday: 9 Wednesday: 11 Thursday: 10 Friday: 9 Saturday: 9 Using a significance level of .05 and the Excel function, =chiinv(), find the critical value. b) c) d) What is the chi square value for this scenario? Use the answer to b and the =chidist() equation in Excel to find the p value. Is there a relationship between the days of the week and the number of employees who are sick on that day? 2. Hypothesis testing with 2 populations: UMUC's Business Management department is concerned that dual degree students may be receiving lower grades than the regular management students. Two independent random samples have been selected. 150 observations from population 1 (dual degree students) and 150 from population 2 (management only degree.) It is known from past studies that the population variance for dual degree students is 4.5 and the population variance for management only students is 5.0. The current study found that the mean score for the dual degree students is 79 and the mean score for the management only students is 82. 3. ANOVA: UMUC wants to use a new tutorial to teach the students about business ethics. As an experiment the administrator randomly selected 15 students and randomly assigned them to one of three groups which include either a PowerPoint presentation created by the faculty, AuthorGen Presentation created by the faculty, or a well known tutorial by the ABC company. After completing their assigned tutorial, the students are given a Business Ethics test. At the .01 significance level, can UMUC conclude that there is a difference between how well the different tutorials work for the students? Here is a good website where you can find the f table for significance level . 01 http://www.socr.ucla.edu/Applets.dir/F_Table.html#FTable0.01 PowerPoin t Tutorial (X1) 68 85 91 87 88 AuthorGen ABC Tutorial Tutorial (X2) (X3) 79 75 86 83 82 78 92 86 91 81