Question

"The confidence interval is (2668.4214) (Round to the nearest integer as needed) Interpret the interval. Select the correct choice below and fill in any answer boxes to complete your choice.

A tomb examination has resulted in a confidence interval for radon exposure levels in the region. What is the most accurate interpretation of this interval?

A. With % confidence, the expected level of radon exposure for the next tomb examined in the region is between ___ and ___ Bq/m³.
B. With % confidence, the true mean level of radon exposure in tombs in the region is exactly ___ Bq/m³.
C. With % confidence, the true variance of radon exposure in tombs in the region is between ___ and ___ Bq/m³.
D. With % confidence, the true mean level of radon exposure in tombs in the region is between ___ and ___ Bq/m³."

Answer 1

The correct interpretation of a confidence interval such as (4.5, 9.5) is that with 95% confidence, the true mean level of radon exposure in tombs in the region is between 4.5 and 9.5 Bq/m³.

Step-by-step explanation:

The correct interpretation of a confidence interval in the context of a study on radon levels involves understanding the range and the confidence level associated with the estimate of the true population mean. When given a confidence interval such as (4.5, 9.5), and a confidence level (e.g., 95%), the main answer and correct interpretation (Option D) would be: "With 95% confidence, the true mean level of radon exposure in tombs in the region is between 4.5 and 9.5 Bq/m³." This means that if we were to take many samples and calculate the confidence interval for each sample, we expect 95% of those intervals to contain the true mean radon level in the region.