in 2010 polls indicated that 73% of americans favored mandatory testing of students in public schools as a way to rate the school. this year in a poll of 1,000 americans 72% favor mandatory testing for this purpose. has public opinion changed since 2010?

hypothesistesting,probabilitythat Americans have changed their opinion on this issue since 2010 is 0.013.Hypothesistesting:populationprobabilitydistributions.samplingdistributionof the test statistic based on the null hypothesis, the sample data, and the type of test performed (bottom-tailed, top-tailed, or two-tailed).lowertailtest is given by:p-value = P(test statistic < observed test statistic | H 0 is true).nullhypothesisis true means there is a significant change in opinion of people’s .alternativehypothesisimplies there is no change in opinion of public .P -valueis obtained about 0.013probabilityvalue 0.013 implies that a significant change in opinion of American public in this year since, 2010.Hypothesistesting,:Completequestion: