Problem 2: Chi-square Test A statistical data were obtained by interviewing 100 males, 120 females, and 150 gays. The samples were asked on the factors affecting their personal happiness. The summary of the data are shown in the table below: Perception Factors affecting Happiness Male Female Gay Friends 22 36 67 125 Job and Activities 48 52 49 149 Health and Physical 30 32 34 96 100 120 150 370 Is there a significant difference between the preferences of a male, female, and gay? (Use a 1 level of significance) Problem 3: Pearson's r certain community would like to know if the academic performance of a student is affected by the number of hours he spend using a computer in a day, by using the given data below, tell if there is a significant relationship between the student's grade and the number of hours he spend using computer. Student | Grade in School Hours Spent Using Computer 98 5 77 65 89 83