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A travel article researcher randomly sampled 150 adult residents of Illinois and asked each resident if...

A travel article researcher randomly sampled 150 adult residents of Illinois and asked each resident if he/she planned to vacation outside of Illinois this coming summer. Fifty 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?

Select one: a. (0.178, 0.318) b. (0.258, 0.409) c. (0.172, 0.276) d. (0.142, 0.354)

Math   Statistics-And-Probability   
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A travel article researcher randomly sampled 250 adult residents of Illinois and asked each resident if...
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)
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