C-reactive protein (CRP) is a substance that can be measured in the blood. Value

Question

C-reactive protein (CRP) is a substance that can be measured in the blood. Values increase substantially within 6 hours of an infection and reach a peak within 24 to 48 hours after. In adults, chronically high values have been linked to an increased risk of cardiovascular disease. In a study of apparently healthy children aged 6 to 60 months in Papua New Guinea, CRP was measured in 90 children. The units are milligrams per liter (mg/l). Here are the data from a random sample of 40 of these children.

0.00 4.67 18.53 10.83 0.00 17.76 20.84 22.38 30.51 0.00 75.40 0.00 48.67 0.00 0.00 19.30 11.60 0.00 0.00 9.29 0.00 0.00 20.07 4.67 15.45 0.00 4.67 0.00 58.08 20.84 20.84 0.00 0.00 0.00 0.00 18.53 10.06 9.29 10.83 4.67 (c) Find a 95% confidence interval for the mean CRP. (Round your answers to two decimal places.) Lower limit Upper limit

Explanation / Answer

The statistical software output for this problem is:

One sample T confidence interval:
: Mean of variable

95% confidence interval results:

Hence,

Lower limit = 6.83

Upper limit = 17.56

Variable Sample Mean Std. Err. DF L. Limit U. Limit Data 12.1945 2.650586 39 6.8331838 17.555816

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.