PK0-005 · Question #546
PK0-005 Question #546: Real Exam Question with Answer & Explanation
The correct answer is C: 227-259 days. A 95% confidence interval is calculated as the mean ± 2 standard deviations. 243 days ± (2 × 8 days) = 243 ± 16 = 227–259 days. So, the project manager should communicate a timeframe of 227–259 days to the stakeholders.
Question
A project manager has determined that the critical path of a project is 243 days. However, knowing that the standard deviation is eight days, the project manager would like to provide an estimate to the stakeholders with 95% confidence. Which of the following time frames should the project manager communicate to the stakeholders?
Options
- A195-291 days
- B219-267 days
- C227-259 days
- D235-251 days
Explanation
A 95% confidence interval is calculated as the mean ± 2 standard deviations. 243 days ± (2 × 8 days) = 243 ± 16 = 227–259 days. So, the project manager should communicate a timeframe of 227–259 days to the stakeholders.
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