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 a0.05 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.n4000 B.C. 30A.D. 150 30O A.X131.46 mm136.47 mmWhat are the null and alternative hypotheses?: 0²₁ = 0 ²₂/Ho:H₁: 03/20/OC. Ho: 0 = 02H₁:0² <0²/2S5.13 mm5.34 mmIdentify 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?O A. Reject Ho. There is insufficient evidence to warrant rejection of the claim that the variation of maximal skull breadths in 4000 B.C.is the same as the variation in A.D. 150.○ B. Ho: 0² #03H₂₁:0=0₂OD. Ho:1: 0 ²₁² = 0 ²³²H₁:07 +0²O B. Reject Ho. There is sufficient evidence to warrant rejection of the claim that the variation of maximal skull breadths in 4000 B.C. isthe same as the variation in A.D. 150.O C. Fail to reject Ho. There is insufficient evidence to warrant rejection of the claim that the variation of maximal skull breadths in 4000 O D. Fail to reject Ho. There is sufficient evidence to warrant rejection of the claim that the variation of maximal skull breadths in 4000B.C. is the same as the variation in A.D. 150.B.C. is the same as the variation in A.D. 150.

From given data we have : n x s 4000 B.C. n1=30 x1=131.46 s1=5.13 A.D. 150 n2 =30 x1=136.47…

Answered: Researchers measured skulls from…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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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. n x 4000 B.C. 30 131.92 mm A.D. 150 30 136.92 mm 5.16 mm 5.31 mm What are the null and alternative hypotheses? Hoo #0₂ H₁:0₁ = 0₂ 2 2 OC H₂O²=0² H₁ <0 2 2 Identify the test statistic. F= (Round to two decimal places as needed.) B. H₂O=0₂ H₁0² #03 *D. Hollo² = 0² 2 2 2 H₁0₁20₂ 2

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