research center claims that at least 23% of adults in a certain country think that their taxes will be audited. In a random sample of 900 adults in that country in a recent year, 18% say they are concerned that their taxes will be audited. At α = 0.01, is there enough evidence to reject the center's claim? Identify the critical value(s) for this test. Zo =? Find the standardized test statistic z. Z=?
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.
research center claims that at least 23% of adults in a certain country think that their taxes will be audited. In a random sample of 900 adults in that country in a recent year, 18% say they are concerned that their taxes will be audited. At α = 0.01, is there enough evidence to reject the center's claim?
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