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A researcher wishes to test the claim that the average cost of tuition and fees at a four- year public college is greater than

 

A researcher wishes to test the claim that the average cost of tuition and fees at a four- year public college is greater than $5800. She selects a random sample of 36 students and finds the mean to be $6000. The population standard deviation is $660, Is there evidene to support the cloim at a=0.05?

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