In 2011,computers of Brand a Controlled 25% of the Market,Brand

question 91

Essay

In 2011,computers of Brand A controlled 25% of the market,Brand B 20%,Brand C 10%,and brand D 45%.In 2015,sample data was collected from many randomly selected stores throughout the country.Of the 1,200 computers sold,280 were Brand A,270 were Brand B,90 were Brand C,and 560 were Brand D.Has the market changed since 2011? Test at the 1% significance level.

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Definitions:

Cash Dividend

A payout of cash from a company's profits to its stockholders.

Retained Earnings

The portion of a company's profits that is kept or retained and not paid out as dividends to shareholders.

Retained Earnings Statement

A financial statement that summarizes the changes in retained earnings for a specific period.

Income Statement

A financial statement that provides a summary of a company’s revenues, expenses, and profits/losses over a specified period.