Question

A travel article researcher randomly sampled 250 adult residents of Illinois and asked each resident if he/she planned to vacation outside of Illinois this coming summer. Fifty-six of these adults responded that they plan to vacation outside of Illinois. What is the 95% confidence interval for the population proportion of adult residents of Illinois who plan to vacation outside of Illinois this coming summer?

a. (0.178, 0.318)

b. (0.246, 0.250)

c. (0.172, 0.276)

d. (0.142, 0.354)

Answer 1

A tra.vel arti.cle .research.r rando.mly sampled 250 adult res..idents of Illinois and ask.ed each. resid.ent if he/sh.e planned to vacation outside of Illinois this co..ming summer. Fifty.-six of these adults responded that they plan to vacation outside of Illinois. What is the 95% confidence interval for the population proportion of adult reside.nts of Illinois who plan to vacation outside of Illinois this coming summer?

c. (0.172, 0.276)​

P.S.- Please leave a comment if any explanation is needed.