Pollution A company with a fleet of 150 cars foundthat the emissions systems of 7 out of the 22 they testedfailed to meet pollution control guidelines. Is this strongevidence that more than 20% of the fleet might be outof compliance? Test an appropriate hypothesis and stateyour conclusion. Be sure the appropriate assumptions andconditions are satisfied before you proceed.
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.
Pollution A company with a fleet of 150 cars found
that the emissions systems of 7 out of the 22 they tested
failed to meet pollution control guidelines. Is this strong
evidence that more than 20% of the fleet might be out
of compliance? Test an appropriate hypothesis and state
your conclusion. Be sure the appropriate assumptions and
conditions are satisfied before you proceed.
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