In the 2008GSS, among the American Indian respondents, 4 say they are very happy, 15 say they’re pretty happy, and 8 say they’re not too happy. Among the Asian Indian (South Asian) respondents, 7 say they’re very happy, 10 say they’re pretty happy, and 1 said s/he was not too happy. Based on this information, create the table of expected frequencies.
I'd like to know the steps to this answer as well, thanks.
The observed frequency table is as below
Observed | Very Happy | Pretty Happy | Not Too Happy | Total |
American Indians | 4 | 15 | 8 | 27 |
Asian Indians | 7 | 10 | 1 | 18 |
Total | 11 | 25 | 9 | 45 |
Each Expected cell Value = (Row Total * Column Total) / Total. Total here = 45
The sum of the rows and columns of the Observed and expected tables must be the same in the end.
Expected | Very Happy | Pretty Happy | Not Very Happy | Total |
American Asians | (11*27)/45 = 6.6 | (25*27)/45 = 15 | (9*27)/45 = 5.4 | 6.6 + 15 + 5.4 = 27 |
Asian Indians | (11*18)/45 = 4.4 | (25*18)/45 = 10 | (9*18)/45 = 3.6 | 4.4 + 10 + 3.6 = 18 |
Total | 6.6 + 4.4 = 11 | 15 + 10 = 25 | 5.4 + 3.6 = 9 | 45 |
The Final Table is as Below
Expected Frequency Table | Very Happy | Pretty Happy | Not Very Happy | Total |
American Indians | 6.6 | 15 | 5.4 | 25 |
Asian Indians | 4.4 | 10 | 3.6 | 18 |
Total | 11 | 25 | 9 | 45 |
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