Several years ago, 49% of parents who had children in grades K-12 were satisfied with the quality of education the students receive. A recent poll asked 1,125 parents who have children in grades K-12...


Several years ago, 49% of parents who had children in grades K-12 were satisfied with the quality of education the students receive. A recent poll asked 1,125 parents<br>who have children in grades K-12 if they were satisfied with the quality of education the students receive. Of the 1,125 surveyed, 499 indicated that they were satisfied.<br>Construct a 95% confidence interval to assess whether this represents evidence that parents' attitudes toward the quality of education have changed.<br>What are the null and alternative hypotheses?<br>Ho: p I versus H,: p O<br>(Round to two decimal places as needed.)<br>Use technology to find the 95% confidence interval.<br>The lower bound is<br>The upper bound is<br>(Round to two decimal places as needed.)<br>What is the correct conclusion?<br>O A. Since the interval contains the proportion stated in the null hypothesis, there is insufficient evidence that parents' attitudes toward the quality of education have<br>changed.<br>O B. Since the interval does not contain the proportion stated in the null hypothesis, there is sufficient evidence that parents' attitudes toward the quality of<br>education have changed.<br>O C. Since the interval contains the proportion stated in the null hypothesis, there is sufficient evidence that parents' attitudes toward the quality of education have<br>changed.<br>O D. Since the interval does not contain the proportion stated in the null hypothesis, there is insufficient evidence that parents' attitudes toward the quality of<br>education have changed.<br>

Extracted text: Several years ago, 49% of parents who had children in grades K-12 were satisfied with the quality of education the students receive. A recent poll asked 1,125 parents who have children in grades K-12 if they were satisfied with the quality of education the students receive. Of the 1,125 surveyed, 499 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? Ho: p I versus H,: p O (Round to two decimal places as needed.) Use technology to find the 95% confidence interval. The lower bound is The upper bound is (Round to two decimal places as needed.) What is the correct conclusion? O A. Since the interval contains the proportion stated in the null hypothesis, there is insufficient evidence that parents' attitudes toward the quality of education have changed. O B. Since the interval does not contain the proportion stated in the null hypothesis, there is sufficient evidence that parents' attitudes toward the quality of education have changed. O C. Since the interval contains the proportion stated in the null hypothesis, there is sufficient evidence that parents' attitudes toward the quality of education have changed. O D. Since the interval does not contain the proportion stated in the null hypothesis, there is insufficient evidence that parents' attitudes toward the quality of education have changed.
Jun 05, 2022
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