IQ points are normally distributed with μ=100 and σ=15. About 95% of people are
having IQ between _______.
A) 99.3 and 136.4 B) 70.6 and 129.4
C) 95.5 and 104.5 D) 75.3 and 124.7 정답:B
What is the Chi-square range that includes the probability of 0.95 for n = 20?
A) 10.851~31.410 B) 9.591~34.170
C) 8.907~32.852 D) 10.117~30.144 정답:C
There were four groups; we collected n = 10 from each group. Which statistics
yield the most significant F value?
A) SSB = 100, SSE = 10 B) SSB = 200, SSE = 5
C) SSB = 100, SSE = 20 D) SSB = 100, SSE = 5 정답:D
Ha: ρ > 0, r = - 0.6, SPSS-printed one-tailed p-value = 0.02, alpha =
0.05. What are the p-value and statistical conclusion?
A) 0.98; Do not reject Ho B) 0.02; Reject Ho
C) 0.01; Reject Ho D) 0.99; Do not reject Ho 정답:A
COV(X, Y) = -5. S(X) = 5, and S(Y) = 5. What is the coefficient of
determination?
A) 0.2 B) 0.04 C) -0.2 D) 1.0 정답:B
다섯문제 답 이유좀 간단하게라도 가르쳐주시면 정말 감사하겠습니다 부탁드립니다 ㅜㅜㅜ..
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