8.64 Radon exposure in Egyptian tombs. Refer to the D Radiation Protection Dosimetry (Dec. 2010) study TOMBS of radon exposure in Egyptian tombs, Exercise 7.39 (p. 334). The radon levels-measured in becquerels per cubic meter (Bq/m³)-in the inner chambers of a sam- ple of 12 tombs are listed in the table. 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 Bq/m³. Consequently, the ETA wants to conduct a test to deter- mine if the true mean level of radon exposure in the tombs is less than 6,000 Bq/m³, using a Type I error probabil- ity of .10. A SAS analysis of the data is shown on p. 399. Specify all the elements of the test: Ho, Ha, test statistic, p-value, a, and your conclusion. 50 390 910 12100 180 580 7800 4000 3400 1300 11900 1100 N Mean Std Dev Std Err Minimum Maximum 12 3642.5 4486.9 1295.3 50.0000 12100.0
8.64 Radon exposure in Egyptian tombs. Refer to the D Radiation Protection Dosimetry (Dec. 2010) study TOMBS of radon exposure in Egyptian tombs, Exercise 7.39 (p. 334). The radon levels-measured in becquerels per cubic meter (Bq/m³)-in the inner chambers of a sam- ple of 12 tombs are listed in the table. 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 Bq/m³. Consequently, the ETA wants to conduct a test to deter- mine if the true mean level of radon exposure in the tombs is less than 6,000 Bq/m³, using a Type I error probabil- ity of .10. A SAS analysis of the data is shown on p. 399. Specify all the elements of the test: Ho, Ha, test statistic, p-value, a, and your conclusion. 50 390 910 12100 180 580 7800 4000 3400 1300 11900 1100 N Mean Std Dev Std Err Minimum Maximum 12 3642.5 4486.9 1295.3 50.0000 12100.0
Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter29: Tolerance, Clearance, And Interference
Section: Chapter Questions
Problem 16A: Spacers are manufactured to the mean dimension and tolerance shown in Figure 29-12. An inspector...
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Transcribed Image Text:8.64 Radon exposure in Egyptian tombs. Refer to the
D Radiation Protection Dosimetry (Dec. 2010) study
TOMBS of radon exposure in Egyptian tombs, Exercise 7.39
(p. 334). The radon levels-measured in becquerels per
cubic meter (Bq/m³)-in the inner chambers of a sam-
ple of 12 tombs are listed in the table. 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 Bq/m³.
Consequently, the ETA wants to conduct a test to deter-
mine if the true mean level of radon exposure in the tombs
is less than 6,000 Bq/m³, using a Type I error probabil-
ity of .10. A SAS analysis of the data is shown on p. 399.
Specify all the elements of the test: Ho, Ha, test statistic,
p-value, a, and your conclusion.
50
390
910
12100
180
580
7800
4000
3400
1300
11900 1100
N Mean Std Dev Std Err Minimum Maximum
12 3642.5
4486.9 1295.3
50.0000
12100.0
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