In: Statistics and Probability
1a. Consider two samples from the same population. Sample A has size n=500 and Sample B has size n = 200. Indicate whether each of the following statements is true or false.
We would expect Sample A to have a larger mean than Sample B. |
We would expect the mean of Sample A will be closer to the population mean than the mean of Sample B. |
We would expect the 95% confidence interval (CI) based on Sample A will have a smaller range than a 95% CI based on Sample B. |
We would expect the standard error of the mean based on Sample A will be larger than the standard error of the mean based on Sample B. |
1b. Consider a p% confidence interval (CI) for the population mean constructed from a sample of size n. (For example, if p is 95 then it’s a 95% confidence interval.) Indicate whether each of the following statements is true or false.
The CI will contain the population mean, regardless of the value of p. |
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The CI will contain the sample mean, regardless of the value of p. |
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If one constructed many p% confidence intervals based on different samples of size n from the population, we’d expect approximately p% of those intervals to contain the population mean. |
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We are p% confident that the p% CI will contain the population mean. |
ANSWER ALL PARTS WITH TRUE OR FALSE.