Question

Several years ago, 43% 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, 482 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? H0: p ▼ equals= less than< greater than> not equals≠ versus H1: p ▼ equals= not equals≠ greater than> less than< (Round to two decimal places as needed.)

Answer 1

null and alternative hypotheses

null Hypothesis:               Ho:		p	=	0.430
alternate Hypothesis:    Ha:		p	≠	0.430

95% CI =0.392 ; 0.450

(as above interval contains 0.43 as plausible value we can nt reject null hypothesis)