In reviewing product materials, which reported precision confidence interval (CI) would make the nurse researcher interested in purchasing the product?
A) CI of 2-100 mm
B) CI of 15-75 mm
C) CI of 25-75 mm
D) CI of 2-5 mm

Question

Quizplus · Accepted Answer

A confidence interval (CI) represents the range of values within which a true population parameter is expected to lie. The narrower the confidence interval, the more precise the estimate. A nurse researcher would typically prefer a product with a reported precision confidence interval (CI) that is narrow, indicating a more precise estimate of the product's effectiveness.
Out of the given options, the most precise reported CI is the one that ranges from 2-5 mm. This suggests that the estimate of the product's effectiveness is likely to be within a very narrow range, making it a desirable product for a nurse researcher.
The other options have wider CIs ranging from 2-100 mm, 15-75 mm, and 25-75 mm, respectively, indicating that the estimates are less precise and may be subject to more variability or uncertainty.

In Reviewing Product Materials, Which Reported Precision Confidence Interval (CI)