Last Year, Brand a Mobile Android Phones Had 45% of the Market

question 90

Essay

Last year, Brand A mobile android phones had 45% of the market, Brand B had 35% and Brand C had 20%. This year the makers of Brand C launched a heavy advertising campaign. A random sample of mobile phone stores shows that of the 10 000 android mobile phones sold, 4350 were Brand A, 3450 were Brand B, and 2200 were Brand
C. Has the market changed? Test at $\alpha =$ 0.05.

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Definitions:

Order And Consistency

The principle of maintaining a structured and stable environment in which procedures and norms are clearly defined and consistently applied.

Change And Structure

The dynamic process of implementing alterations in an organization's framework, operations, or culture to adapt to internal and external demands.

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