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5 Microsoft estimated that out of 10,000 potential software buyers, 35% wait to purchase the new OS Windows Vista, until an upgrade has been released. After an advertising campaign to reassure the public was released, Microsoft surveyed 3000 buyers and found 950 who are still skeptical. At 5% level of significance, can the company conclude that the population of skeptical people had decreased?

April 20, 2015 By: Meliza Category: 1st SEM

5 Microsoft estimated that out of 10,000 potential software buyers, 35% wait to purchase the new OS Windows Vista, until an upgrade has been released. After an advertising campaign to reassure the public was released, Microsoft surveyed 3000 buyers and found 950 who are still skeptical. At 5% level of significance, can the company conclude that the population of skeptical people had decreased?

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