When Issuing a Textbook, There Is Always a Number of Defective

question 22

Multiple Choice

When issuing a textbook, there is always a number of defective copies. The publishing house conducts a study to determine whether the number of defective copies depends on the format of the textbook. For the study, three random samples of textbook editions for the different book sizes were generated: a large portrait, a portrait, and a US letter, each of is the editions has approximately equal number of copies. The number of defective copies for each edition is indicated in the table below. ​ Carry out an ANOVA F test and interpret the results using the 95% confidence level.

• A) , , , and p-value is less than 0.05.We reject the null hypothesis and can conclude that the average number of defective copies is not the same for the different textbook formats.
• B) , , , and p-value is greater than 0.05.We don't reject the null hypothesis and can conclude that the average number of defective copies is the same for the different textbook formats.
• C) , , , and p-value is less than 0.05.We reject the null hypothesis and can conclude that the average number of defective copies is not the same for the different textbook formats.
• D) , , , and p-value is greater than 0.05.We don't reject the null hypothesis and can conclude that the average number of defective copies is the same for the different textbook formats.

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Definitions:

Substitutes

Products or services that can be used in place of each other.

Substitutes

Products or services that can be used in place of one another, where an increase in the price of one leads to an increased demand for the other.

Complements

Goods or services that are used together, where an increase in the consumption of one leads to an increase in the consumption of the other.

Law of Supply

The principle that, other things equal, an increase in the price of a good leads to an increase in the quantity supplied, and vice versa.