Answer Happy

DIRECTIONS: To find the answer to the riddie, write the answer to each question in the space immediately below it. The word in parentheses in the solution section next to the answer to the first question is the first word in the answer to the riddle, the word beside the answer to the second question is the second word, and so on. A random sample of 99 social workers was asked to indicate which of three welfare proposals they preferred. The following data were observed: Proposal A Proposal B Proposal C 29 31 39 Compute chi square and test the mull hypothesis that there is no true difference in preferences in the population. 1. What is the expected frequency for Proposal A? 2. To three decimal places, what is the observed value of chi square? (Allow for mi- nor variations in the third place due to rounding.) 3. What is the value of the degrees of freedom? 4. At the .05 level, what is the critical value of chi square? 307 Worksheet 49 (Continued) 5. Is chi square significant at the .05 level? 6. What decision should be made about the null hypothesis at the .05 level? Questions 7, 8, and 9 refer to the following information. These results were obtained for another research problem: x²-10.22,4/-3. 7. "Chi square is significant at the 05 level." Is this statement true or false? 8. What decision should be made about the null hypothesis at the .05 level?