3. A recent report stated that the proportion of teens that vape has decreased from the prior year. The authors randomly selected a group of 600 teens from the current year and 126 of them vape. They randomly selected 800 teens the prior year and 216 of them vaped. Is there significant evidence that the proportion decreased? e. Based on a 5% significance level, what conclusion should be made?
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.
3. A recent report stated that the proportion of teens that vape has decreased
from the prior year. The authors randomly selected a group of 600 teens
from the current year and 126 of them vape. They randomly selected 800
teens the prior year and 216 of them vaped. Is there significant evidence
that the proportion decreased?
e. Based on a 5% significance level, what conclusion should be made?
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