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Assume the IQ of students follows normal distribution. Take a sample of 16 students and find...

Assume the IQ of students follows normal distribution. Take a sample of 16 students and find the mean and the standard deviation of their IQ are 107 and 10, and another sample of 16 students with the mean and the standard deviation 112 and 8. Does the IQ of these two group students differ at the level ? = 0.05?

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