Several years ago, 39% of parents with children in grades K-12 were satisfied with the quality of education the students receive. A recent poll found that 453 of 1 comma 115 parents with children in grades K-12 were satisfied with the quality of education the students receive. Construct a 99% 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? Find the 99% confidence interval.
What is the lower and upper bound?
What of the following is the correct conclusion?
.
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.
B.
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.
C.
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.
D.
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.
