Question

7. 12pts total) The International Survey on Coronavirus is a website created by an international team of researchers from different institutions, including Harvard, Cambridge, IESE, and Warwick University, among others. They are collecting survey data on how citizens prepare and cope with the spreading of coronavirus. As of Sunday, April 11, there were 110.968 adult participants age 18 and over from all over the world who participated in the survey, and __0_perceived their government's reaction as insufficient. All in the bank choose a number between 200 to 700 (with at least one decimal place) Do not choose 50.0% a). Determine a 99% confidence interval for population proportion of adult participants from all over the world who perceived their government's reaction as insufficient. Don't round until the end. Show at least 2 significant figures b). Why is the confidence interval so narrow? Explain your answer.

i, 60%

Answer 1

salution: - 7 99% contidence interval = 0.60 1 2.576 10.6x0.4 110,968 = 10.596 epe 10.604 b) confidence interval is so marrow, due to large sample size, as sample size increases the width of internal reduces,