Suppose There Are 5 Makers of Tablet Computers with Market

question 86

Multiple Choice

Suppose there are 5 makers of tablet computers with market shares of 80%, 5%, 5%, 5%, and 5% respectively. The HHI is

• A)0.
• B)20.
• C)6,500.
• D)10,000.

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Definitions:

Confidence Interval

A range of values derived from sample statistics that is likely to contain the true parameter of the population with a specified level of confidence.

Population Mean

The average of all the numerical values in a population, calculated as the total sum of the values divided by the number of values in the population.

Population Standard Deviation

A measure of the dispersion of all values in a given population from the mean of that population.

Sampling Error

The discrepancy between a sample statistic and the true population parameter, which arises purely by chance.