Researchers measured skulls from different time periods in an attempt to determine whether interbreeding of cultures occurred. Results are given below. Assume that both samples are independent simple random samples from populations having normal distributions. Use a 0.05 significance level to test the claim that the variation of maximal skull breadths in 4000 B.C. is the same as the variation in A.D. 150. 131.91 mm 5.18 mm 5.36 mm 4000 B.C. 30 A.D. 150 30 136.44 mm O B. Ho: o? ±o? O A. Ho:of = 03 Hz: of

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Researchers measured skulls from different time periods in an attempt to determine whether interbreeding of cultures occurred. Results are given below. Assume that
both samples are independent simple random samples from populations having normal distributions. Use a 0.05 significance level to test the claim that the variation of
maximal skull breadths in 4000 B.C. is the same as the variation in A.D, 150.
4000 B.C.
30
131.91 mm
5.18 mm
A.D. 150
30
136.44 mm
5.36 mm
O B. Ho: of ±o?
H1: of = o3
O D. Hoi of = 0}
O A. Ho: oi = 03
OC. Ho:o =03
H,: of 203
Identify the test statistic.
F= (Round to two decimal places as needed.)
Use technology to identify the P-value.
The P-value is
(Round to three decimal places as needed.)
What is the conclusion for this hypothesis test?
Transcribed Image Text:Researchers measured skulls from different time periods in an attempt to determine whether interbreeding of cultures occurred. Results are given below. Assume that both samples are independent simple random samples from populations having normal distributions. Use a 0.05 significance level to test the claim that the variation of maximal skull breadths in 4000 B.C. is the same as the variation in A.D, 150. 4000 B.C. 30 131.91 mm 5.18 mm A.D. 150 30 136.44 mm 5.36 mm O B. Ho: of ±o? H1: of = o3 O D. Hoi of = 0} O A. Ho: oi = 03 OC. Ho:o =03 H,: of 203 Identify the test statistic. F= (Round to two decimal places as needed.) Use technology to identify the P-value. The P-value is (Round to three decimal places as needed.) What is the conclusion for this hypothesis test?
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