An obesity researcher conducted a study to assess whether there
was a difference in the proportion (prevalence) of individuals who
are obese between males and females. The following data were
reported by the researcher.
obese | obese | ||
Gender | yes | no | total |
male | 20 | 130 | 150 |
female | 50 | 150 | 200 |
total | 70 | 280 | 350 |
Construct a 95% CI for pF-pM, the difference in population
proportion of obesity between females and males.
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