2. A company claims that 90% of its deliveries arrive on time. You take a sample of 74 deliveries, of which only 59 arrive on time. Is this enough evidence to say that the true percentage of on-time deliveries is lower than claimed? (Use a = .10)
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.
Solve by hand please (no excel) You are missing a few pieces here. You need to draw and shade the distribution curve. We do not "keep" the Ho, but rather "Do not Reject Ho". Also, make sure to write the full sentence...
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