For each scenario, indicate if the chapter 16 confidence interval is appropriate

Question

For each scenario, indicate if the chapter 16 confidence interval is appropriate, and briefly explain why. (a) A prison has records on all 385 of its inmates, and finds that 59% have been vaccinated 3. against pararibulitis. (Appropriate | Not Appropriate) (b) A random sample of 1178 inmates in prisons across Oklahoma finds that 59% have been vaccinated against pararibulitis. (Appropriate |Not Appropriate) A prison doctor notes that, of the last 86 inmates to receive medical care, 59% have been (c) vaccinated against pararibulitis. (Appropriate | Not Appropriate

Explanation / Answer

a) Not appropriate since we are taking the entire population to find the proportion so there is no need of confidence interval.

b) Appropriate since we are taking a random sample of inmates.

c) Not appropriate since the sampling is not random sampling and we are taking the last 86 inmates sample. This may not be the representative of all the inmates.

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