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- We don't know if the 95% confidence interval actually does or does not contain the population proportion
- The sample proportion must lie in the 95% confidence interval
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A 95% confidence interval for a population proportion...
At a confidence level of 95% a confidence interval for a population proportion is determined to...
At a confidence level of 95% a confidence interval for a population proportion is determined to be 0.65 to 0.75. If the sample size had been larger and the estimate of the population proportion the same, this 95% confidence interval estimate as compared to the first interval estimate would be Group of answer choices narrower. the same. wider.
Let's say we have constructed a 95% confidence interval estimate for a population mean. Which of...
Let's say we have constructed a 95% confidence interval estimate for a population mean. Which of the following statements would be correct? A. We expect that 95% of the intervals so constructed would contain the true population mean. B. We are 95% sure that the true population mean lies either within the constructed interval or outside the constructed interval. C. Taking 100 samples of the same size, and constructing a new confidence interval from each sample, would yield five intervals...
A 95% confidence interval for a population proportion p is found to be (0.52, 0.58). What...
A 95% confidence interval for a population proportion p is found to be (0.52, 0.58). What does this mean? A. There is a 95% probability that the actual value of p is between 52% and 58%. B. If many simple random samples of the same size were taken from the population, and a confidence interval were constructed for each one, then about 95% of them would contain the actual value of p. C. 95% of all sample proportions are between...
3. A 95% confidence interval for a population proportion yielded the interval (.245, .355). Compute the...
3. A 95% confidence interval for a population proportion yielded the interval (.245, .355). Compute the margin of error. Compute the sample proportion. Will a 99% confidence interval be wider or narrower? Explain why or why not.
Which must be true about a 95% confidence interval based on a given sample? I. The...
Which must be true about a 95% confidence interval based on a given sample? I. The interval is wider than a 99% confidence interval would be. II. The interval contains 95% of the population. III. The interval is narrower than a 90% confidence interval would be.
What proportion of college students plan to major in Business? A 90% confidence interval is constructed...
What proportion of college students plan to major in Business? A 90% confidence interval is constructed based on data collected from 250 college students, and the interval is found to be from 0.18 to 0.27. Which of the following statements is a correct interpretation of this confidence interval? A We are confident that 90% of all students in the population plan to major in Business. B We are 90% confident the proportion of students in our sample who plan to...
What proportion of adults like pineapple as a pizza topping? A 95% confidence interval for the...
What proportion of adults like pineapple as a pizza topping? A 95% confidence interval for the proportion of adults who say they like pineapple on their pizza was constructed and it was found to be from 0.14 to 0.20. Based on this interval, we know the margin of error must be 0.02. 0.03 It's impossible to answer this question without more information. O 0.06. O 0.05.
part 1. A student was asked to find a 95% confidence interval for the proportion of...
part 1. A student was asked to find a 95% confidence interval for the proportion of students who take notes using data from a random sample of size n = 79. Which of the following is a correct interpretation of the interval 0.12 < p < 0.32? There is a 95% chance that the proportion of notetakers in a sample of 79 students will be between 0.12 and 0.32. There is a 95% chance that the proportion of the population...
What is meant by the term “90% confident” when constructing a confidence interval for a proportion?...
What is meant by the term “90% confident” when constructing a confidence interval for a proportion? A. If we took repeated samples, approximately 90% of the confidence intervals calculated from those samples would contain the sample proportion. B. If we took repeated samples, approximately 90% of the samples would produce the same confidence interval. C. If we took repeated samples, the sample proportion would equal the population mean in approximately 90% of the samples. D. If we took repeated samples,...
A student was asked to find a 95% confidence interval for the proportion of students who...
A student was asked to find a 95% confidence interval for the proportion of students who take notes using data from a random sample of size n = 82. Which of the following is a correct interpretation of the interval 0.13 < p < 0.33? Check the best one. With 95% confidence, the proportion of all students who take notes is between 0.13 and 0.33. With 95% confidence, a randomly selected student takes notes in a proportion of their classes...
What proportion of adults like pineapple as a pizza topping? A 95% confidence interval for the proportion of adults who say they like pineapple on their pizza was constructed and it was found to be from 0.14 to 0.20. Based on this interval, we know the margin of error must be 0.02. 0.03 It's impossible to answer this question without more information. O 0.06. O 0.05.
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