A machine puts out 16 imperfect articles in a sample of 500. After the machine is overhauled it puts 3 imperfect articles in a batch of 100. Has the machine been improved? Use 5% level of significance. Use p-value fot your conclusion and also find 88% confidence interval for difference between population proportion.
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 machine puts out 16 imperfect articles in a sample of 500. After the machine is overhauled it puts 3 imperfect articles in a batch of 100. Has the machine been improved? Use 5% level of significance. Use p-value fot your conclusion and also find 88% confidence interval for difference between population proportion.
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