A medical researcher says that less than 83% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 600 adults in that country, 80% think...

​(a) Identify the claim and state H0 and Ha. (b) Find the critical​ value(s) and identify the rejection​ region(s). ​(c) Find the standardized test statistic z. ​(d) Decide whether to reject or fail to reject the null hypothesis and​ (e) interpret the decision in the context of the original claim.


Extracted text: A medical researcher says that less than 83% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 600 adults in that country, 80% think that healthy children should be required to be vaccinated. At a = 0.10, is there enough evidence to support the researcher's claim? Complete parts (a) through (e) below. O B. % of adults in the country think that healthy children should be required to be vaccinated. OC. More than % of adults in the country think that healthy children should be required to be vaccinated. D. The percentage of adults in the country who think that healthy children should be required to be vaccinated is not %, Let p be the population proportion of successes, where a success is an adult in the country who thinks that healthy children should be required to be vaccinated. State H, and H. Select the correct choice below and fill in the answer boxes to complete your choice. (Round to two decimal places as needed,) OC. Ho: ps 0 04 Hp> 0.04 OF. Ho:p> Ha ps OB. Ho: p= H: p O A. Ho: p2 0.04 H:p< 0.04="" o="" e.="">< haipz d. ho: p# hgip= click to select and enter your answer(s) and then click check answer. final check clear all 4 parts nining 8:04 pm (?) 3/24/2021 haipz="" d.="" ho:="" p#="" hgip="Click" to="" select="" and="" enter="" your="" answer(s)="" and="" then="" click="" check="" answer.="" final="" check="" clear="" all="" 4="" parts="" nining="" 8:04="" pm="" (?)="">