Bella’s aims to construct a confidence interval for the mean of a normal population with known standard deviation. List three factors that could help her in reducing the size of margin error. Then, she collects a random sample of size nn from a population and from the data collected she compute a 95% confidence interval for the mean of the population. Based on the same dataset, state one factor that could produce a new confidence interval with larger width (Hint: Larger margin of error).
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.
Bella’s aims to construct a confidence interval for the mean of a normal population with known standard deviation. List three factors that could help her in reducing the size of margin error. Then, she collects a random
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