Many ancient tombs were cut from limestone rock that contained uranium. Since most such tombs are not well-ventilated, they may contain radon gas. In one study, the radon of 12 tombs in a particular region were measured in becquerels per cubic meter (Bq /m). For this data, assume that x = 3,695 Bq/m° and s = 1,216 Bq/m. Use this inform with 95% confidence, the true mean level of radon exposure in tombs in the region. Interpret the resulting interval. Assume that the sampled populationlis approximately norm The confidence interval is (OD. (Round to the nearest integer as needed.)

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Many ancient tombs were cut from limestone rock that contained uranium. Since most such tombs are not well-ventilated, they may contain radon gas. In one study, the radon levels in a sample
of 12 tombs in a particular region were measured in becquerels per cubic meter (Bq /m). For this data, assume that x = 3,695 Bg/m and s= 1,216 Bg/m, Use this information to estimate,
with 95% confidence, the true mean level of radon exposure in tombs in the region. Interpret the resulting interval. Assume that the sampled populationtis approximately normal.
The confidence interval is ( )
(Round to the nearest integer as needed.)
Transcribed Image Text:7.3.39-T Question Help ▼ Many ancient tombs were cut from limestone rock that contained uranium. Since most such tombs are not well-ventilated, they may contain radon gas. In one study, the radon levels in a sample of 12 tombs in a particular region were measured in becquerels per cubic meter (Bq /m). For this data, assume that x = 3,695 Bg/m and s= 1,216 Bg/m, Use this information to estimate, with 95% confidence, the true mean level of radon exposure in tombs in the region. Interpret the resulting interval. Assume that the sampled populationtis approximately normal. The confidence interval is ( ) (Round to the nearest integer as needed.)
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