Monday

March 30, 2015

March 30, 2015

Posted by **Carol** on Wednesday, October 17, 2012 at 11:50am.

How do I go about determining if the sample data can be used to construct a confidence interval?

Example:

To help consumers assess the risks they are taking, the Food and Drug Administration (FDA) publishes the amount of nicotine found in all commercial brands of cigarettes. A new cigarette has recently been marketed. The FDA tests on this cigarette gave a mean nicotine content of 24.2 milligrams and standard deviation of 2.7 milligrams for a sample of n = 9 cigarettes.

- statistics -
**MathGuru**, Wednesday, October 17, 2012 at 6:58pmSince the sample size is small in your example, you would most likely need to use the t-distribution when constructing a confidence interval to account for the smaller sample size.

**Answer this Question**

**Related Questions**

Statistics - Use the sample data and confidence level to construct the ...

statistics - 1. A random sample of size 49 is taken from a large population, ...

Statistics - Use the sample data and confidence level to construct the ...

Statistics - Which of the following statements correctly interprets a 95% ...

statistics - A sample of 200 students in a English class were asked- How long ...

Statistics - When consumers apply for credit, their credit is rated using the ...

statistics - A random sample of size 49 is taken from a large population, ...

statitics - Certain data includes 36 body temperatures for which the sample mean...

business statistics - For one of the tasks in a manufacturing process, the mean ...

Statistics - You are given the following information obtained from a random ...