Question

OMeworR: 4-2 MyStatlab: Module Four Problem Set Save core: 0 of 5 pts 9 of 15 (8 complete)V HW Score: 33.08%, 21.5 of 65 p 0.2.23 Question Help 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 1,095 parents who have children in grades K-12 if they were satisfied with the quality of education the students receive. Of the 1,095 surveyed, 476 indicated that they were satisfied. 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? versus H1: p Round to two decimal places as needed.) Enter your answer in the edit fields and then click Check Answer. Clear A remaining

Answer 1

null Hypothesis:               Ho:		p	=	0.490
alternate Hypothesis:    H1:		p	≠	0.490

from above 99% CI for population proportion =0.396 ;0.474

as above interval does not contain 0.49 ; therefore we have sufficient evidence to conclude that proportion has changed