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A chemist measures the haptoglobin concentrations (in grams per liter) in the blood of eight healthy adults. The mean and standard deviation of the haptoglobin concentrations (in grams per liter) are 1.615 and 1.387 respectively.Obtain a 99% confidence interval for the mean haptoglobin concentration in adults.

User Jorame
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1 Answer

18 votes
18 votes

allIn the question, we are given the following information.


\begin{gathered} \operatorname{mean}=1.615 \\ \text{Standard deviation = 1.387} \\ \text{Confidence level =99\%} \\ \text{sample = 8} \end{gathered}

Step-by-step explanation

We can find the confidence interval using the formula below;


CI=\bar{x}\pm z.\frac{s}{\sqrt[]{n}}

CI = confidence interval

x = sample mean

z = confidence level value

s = sample standard deviation

n = sample size

For a 99% confidence interval, the confidence level value is 2.576

Therefore, the CI can be gotten by inserting all the stated values into the formula.


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User HungryBird
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