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, approximately 90% of the confidence intervals calculated from those samples would contain the true value of the population proportion. |
Homework Answers
The meaning of the term “90% confident” when constructing a confidence interval for a proportion is:
The 95% confidence interval indicates that there is 95% chance that the population mean contain in the calculated confidence interval.
Therefore the correct choice is:
D) If we took repeated samples, approximately 90% of the confidence intervals calculated from those samples would contain the true value of the population proportion.
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