Asked by Micah Johnson on Jul 08, 2024
Verified
The upper limit of the 85% confidence interval for the population proportion p, given that n = 60 and = 0.20 is 0.274.
Population Proportion
A measure that describes the fraction of individuals in a population that possess a specified attribute or characteristic.
- Formulate and understand intervals of certainty for proportions among populations.
Verified Answer
SS
Shreelaxmi SahooJul 09, 2024
Final Answer :
True
Explanation :
Since the upper limit of the 85% confidence interval for p is 0.274, this means that the estimated proportion of successes (p-hat) falls within the range of 0.20 to 0.274 with 85% confidence. Since the interval includes the point estimate of 0.20 and extends above it, we can be fairly confident that the true proportion of successes in the population is greater than 0.20, but we cannot say for certain whether it is greater than 0.274. Therefore, the statement is true and the answer is A.
Learning Objectives
- Formulate and understand intervals of certainty for proportions among populations.
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