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Several years? ago, 47?% of parents who had children in grades? K-12 were satisfied with the quality of education the students receive. A recent poll asked 1,145 parents who have children in grades? K-12 if they were satisfied with the quality of education the students receive. Of the 1,145 ?surveyed, 468 indicated that they were satisfied. Construct a 95?% confidence interval to assess whether this represents evidence that? parents' attitudes toward the quality of education have changed.
What are the null and alternative? hypotheses?
Upper H 0
?(Round to two decimal places as? needed.)
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