In analysis of variance, when the null hypothesis is true, then all of the following are true EXCEPT
A) occasionally an F ratio will be significant anyway.
B) within-group and between-group variances are estimating the same population variance.
C) the F ratio will generally be substantially larger than 1.
D) the variance between samples is due entirely to random sampling variance.
Answer: C
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As a result of anti-malaria pesticide campaigns in the less developed nations,
A. many mosquitoes have become resistant to pesticides. B. malaria is no longer a serious threat. C. bird and fish populations have flourished. D. tuberculosis has become more common. E. AIDS has become more common.
Within the melting pot, minority groups were subject to ________
A) Multicultiralism B) Pluralism C) Assimilation D) Immigration
In Nigeria in 2009, female e00=54, and 79% of all women survived to their 30th birthday. Which of the following was also true about female mortality in Nigeria in 2009?
a) Ten percent of women who were alive at on their 30th birthday survived to their 65th birthday, and those who lived to their 65th birthday on average lived one more year. b) Sixty percent of women who were alive at on their 30th birthday survived to their 65th birthday, and those who lived to their 65th birthday on average lived one more year. c) Ten percent of women who were alive at on their 30th birthday survived to their 65th birthday, and those who lived to their 65th birthday on average lived 13 more years. d) Sixty percent of women who were alive at on their 30th birthday survived to their 65th birthday, and those who lived to their 65th birthday on average live 13 more years.
The Iron Curtain opened Eastern Europe into the global capitalist world and allowed information to and from that region.
a. True b. False