In a study, a pair of faces is shown on a screen and researchers record the amount of time the baby spends looking at each face. In a sample of n = 40 infants, suppose 26 spent the majority of their time looking at the more attractive face and only 14 spent the majority of the time at the unattractive face. Is the result significantly different from what would be expected if there were no preference between the two faces.
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.
In a study, a pair of faces is shown on a screen and researchers record the amount of time the baby spends looking at each face. In a sample of n = 40 infants, suppose 26 spent the majority of their time looking at the more attractive face and only 14 spent the majority of the time at the unattractive face. Is the result significantly different from what would be expected if there were no preference between the two faces.
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