candidate for the municipal elections wishes to survey residents of her district to see what proportion is aware of her ideas for improving service delivery. If she has strong reason to believe that at least 3 2 of the electorate know of her ideas, how large a sample size would you recommend if the 95% CI for the true population proportion is to have a width of 0.1?
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
A candidate for the municipal elections wishes to survey residents of her district to see what
proportion is aware of her ideas for improving service delivery. If she has strong reason to believe
that at least
3
2
of the electorate know of her ideas, how large a
recommend if the 95% CI for the true population proportion is to have a width of 0.1?
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