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77 An article in the San Jose Mercury News stated that students in th California...

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77 An article in the San Jose Mercury News stated that students in th California state university system take 4 5 years on average to finish their undergraduate degrees Suppose you believe that the mean time is longer You conduct a survey of 49 students and obtain a sample mean of 5 1 with a sample standard deviation of 1 2 Do the data support your claim at the 1 percent level

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