The owner of a mail-order catalog would like to compare her sales with the geographic distribution of the population. According to the U.S. Bureau of the Census, 22% of the population lives in the Northeast, 27% in the Midwest, 19% in the South, and 32% in the West. Listed below is a breakdown of a sample of 422 orders randomly selected from those shipped last month. At the .01 significance level, does the distribution of the orders reflect the population?
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.
d.
The owner of a mail-order catalog would like to compare her sales with the geographic distribution of the population. According to the U.S. Bureau of the Census, 22% of the population lives in the Northeast, 27% in the Midwest, 19% in the South, and 32% in the West. Listed below is a breakdown of a sample of 422 orders randomly selected from those shipped last month. At the .01 significance level, does the distribution of the orders reflect the population?
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 4 images
