This Test: 27 pts possible Question Help * Researchers measured skulls from diff

Question

This Test: 27 pts possible Question Help * Researchers measured skulls from different time periods in an attempt to determine whether interbreeding of cultures occurred both samples are independent simple random samples from populations having normal dist of maximal skull breadths in 4000 B.C, is the same as the variation in A.D. 150 Results are given belowc Assume that Use a 0.05 significance level to test the claim that the vaniation 4000 B.C. 30 131.87 mm 5.12 mm A.D. 150 30 36.95 mm 5.31mm O B. 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? O A Fail to reject Ho There is insufficient evidence to warrant rejection o theB. Fal to reject Ho There is sufficient e dence to warrant re ect claim that the variation of maximal skull breadths in 4000 B.C. is the same as the variation in A.D. 150 f the claim that the variation of maximal skull breadths in 4000 B.C. is the same as the variation in A D. 150 O C. Reject Ho. There s nsuficient evidence to warrant rejection of the claim OD. Reject o. There is suficien viderce to warantrniectiona Click to select your answer(s) This course (Math 153 E Copyright 2017 Pearson Education

Explanation / Answer

The statistical software output for this problem is:

Two sample variance summary hypothesis test:
12 : Variance of population 1
22 : Variance of population 2
12/22 : Ratio of two variances
H0 : 12/22 = 1
HA : 12/22 1

Hypothesis test results:

Hence,

Hypotheses: Option C is correct.

Test statistic = 0.93

P - value = 0.846

Conclusion: Option A is correct.

Ratio Num. DF Den. DF Sample Ratio F-Stat P-value 12/22 29 29 0.92971723 0.92971723 0.8458

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.