Trying to understand how to formulate null and alternative hypotheses

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A school educator is interested in determining the potential relationship between grade point average (GPA) and IQ scores among ninth graders. The educator takes a random sample of 30 ninth graders aged 14 years old and administers the Wechsler Intelligence Scale for Children-Fourth Edition (WISC-IV).

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Hypotheses - Formulate null and alternative hypotheses. What do you think is the relationship between IQ scores and GPA?
 

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