Answer Happy

Outcome 3: Chi-Square Test Chi Square Test: Nielsen/NetRating is a global leader in Internet media and market research. In May 2010, the firm reported on the "search" shares (i.e. proportion of all internet searches) for the most popular search engines available on the Web Wheat Bread Brands Preferences or Actual shares (ni) (pi) Expected Elni) 1. Google 0.55 487 2. Yahoo 0.22 245 3. Bing 0.11 121 4. Other 0.12 147 Total N-1000 A. Set up a tall and alternative hypothesis to test if the preferences (pi) for the four search engines are the same as before B. Calculate the expected preferences Elni) and put your answers in the table above. C. Use the formula to calculate the c? test statistic. (show the calculated values for each group and the final value) c? - D. The critical chi-square (c) value for a -0.01 D. What conclusion can we derive from the chi-square test? At the 1% level are the "search" shares the same as those reported by Nielsen/NetRatings? [Copy the questions when providing your answers)