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Illustrate what alpha level would it be significant

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Q. You conduct a survey of a sample of 25 members of this year's graduating business students also find that the average GPA is 3.2. The standard deviation of the sample is 0.4. Over the last 10 years, the average GPA has been 3.0. Is the GPA of this year's students significantly different from the long-run average? At illustrate what alpha level would it be significant?

 

 

 

Reference no: EM1389348

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