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:

Solomon Asch

A psychologist best known for his research on conformity, demonstrating how group pressure can persuade individuals to conform to an incorrect answer or viewpoint.

Conformity

The act of matching attitudes, beliefs, and behaviors to group norms or societal standards.

Milgram's Obedience Study

A psychological experiment conducted by Stanley Milgram, which measured the willingness of study participants to obey an authority figure who instructed them to perform acts conflicting with their personal conscience.

Disobey

The act of not following a command, rule, or request.