Exhibit 10-11 To Test Whether or Not There Is a Difference Between

question 20

Multiple Choice

Exhibit 10-11
To test whether or not there is a difference between treatments A, B, and C, a sample of 12 observations has been randomly assigned to the 3 treatments. You are given the results below.

-Refer to Exhibit 10-11. The test statistic to test the null hypothesis equals

• A)0.944
• B)1.059
• C)3.13
• D)19.231

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Definitions:

Herfindahl-Hirschman Index

A measure used to determine the level of competition within an industry, calculated by summing the squares of the market shares for each firm within the industry.

Concentration Ratio

A measure used in economics to assess the degree of market concentration by calculating the market share of the largest firms within an industry.

Market Share

The proportion of total sales or revenue generated by a company within a particular market, compared to the total market size.

Concentration Ratio

The concentration ratio is a measure used in economics to assess the level of competition within an industry by indicating the market share controlled by the top firms.