Radon exposure in Egyptian tombs. Refer to the Radiation Protection Dosimetry (December 2010) study of radon exposure in Egyptian tombs, Exercise 6.30 (p. 325). The radon levels–measured in becquerels per cubic meter (Bqm3)–in the inner chambers of a sample of 12 tombs are listed in the table shown below. For the safety of the guards and visitors, the Egypt Tourism Authority (ETA) will temporarily close the tombs if the true mean level of radon exposure in the tombs rises to 6,000 Bqm3 Consequently, the ETA wants to conduct a test to determine if the true mean level of radon exposure in the tombs is less than 6,000 Bqm3. using a Type I error probability of .10. An SPSS analysis of the data is shown at the bottom of the page. Specify all the elements of the test: H0, Ha, test statistic, p-value, α, and your conclusion.
One-Sample Statistics
N | Mean | Std. Deviation | Std. Error Mean | |
RADON | 12 | 3642.50 | 4486.929 | 1295.265 |
One-Sample Test
SPSS output for Exercise 7.551
50 | 910 | 180 | 580 | 7800 | 4000 |
390 | 12100 | 3400 | 1300 | 11900 | 1100 |
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Statistics for Business and Economics (13th Edition)
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill