Based on the text above, judge the following items.

It is possible that the perception factor mentioned in the text helped PETROBRAS reach an outstanding ranking.

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According to RI's ranking, an 8.20-point difference in relation to 2006 brought PETROBRAS to the top 8 in 2007.

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According to the Reputation Institute, in 2007 PETROBRAS has become the most respected Brazilian company as well as the most respected energy company in the world.

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Besides PETROBRAS, three other Brazilian companies also made significant progress in relation to the 2006 survey.

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Brazilian companies have had a long time tradition of being among the world's 50 most respected corporations.

According to the text,

customer service and the image presented by the business is a concern solely of the business owner.

According to the text,

customers who have complained about a certain company make good candidates for mystery shoppers.

According to the text,

for customer contact positions, the candidate's educational background is the decisive factor.

According to the text,

the more successful a company is, the more satisfied its customers are.

According to the text,

some employees think they do not have to be nice with customers.