An event marketing executive thinks that the proportion of consumers who have seen his company’s advertising in newspapers is somewhere between 65 and 85 percent. He wants to estimate the consumer population proportion to within ± 1 percent and have 90 percent confidence in the estimate. How large a sample should be taken? State the most conservative sample size.
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.
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