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21.05.2020 •
Mathematics
In a Christmas tree survey, respondents who has a tree during the holiday season were asked whether the tree was natural or artificial. Respondents were also asked if they lived in an urban area in a rural area. Of the 421 households displaying a Christmas tree, 160 lived in rural areas and 261 were urban residents. The tree growers want to know if there is difference in preference for natural trees versus artificial trees between urban and rural households.
Here are the data:
Population
(natural)
1 (rural)
160
64
2 (urban)
261
89
Is there a difference in preference for natural trees between urban and rural households? (set the confidence level at 95%) Interpret your conclusion.
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Ответ:
is the correct answer :)