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Lecture Notes for SOCY 201 - INTRO STATISTICS with DeRose at Maryland (UMD)

Notes Information

Material Type:Note
Professor:DeRose
Class:SOCY 201 - INTRO STATISTICS
Subject:Sociology
University:University of Maryland
Term:Fall 2003
Keywords:
  • Particularly
  • Significant Difference
  • Asian Americans
  • Distribution
  • The Independent
  • Small Sample
  • Association
  • Level of Measurement
  • Contingency
  • Presentations
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Small sample test of a difference between two means Sociologists have been particularly interested in the success of Asian Americans despite racial discrimination in the U.S. A sociologist took a random sample of27 Japanese American men and found their mean annual earnings to be $22,907 with a standard deviation of$11,120. She also took a random sample of32 Non-Hispanic white men and found their mean annual earnings to be $24,891 with a standard deviation of$14,225. You may assume earnings are normally distributed. Is there a significant difference in annual earnings between Japanese American men and white men? Set a = .05 Japanese White X J =22,907 Xw =24,891 sJ=11,120 sw=14.225 N J =27 N w =32 We assume: independent samples, random samples, level of measurement is interval ratio, equal population variances (you are allowed to assume this unless stated otherwise), the sampling distribution is normal Ho: /lJ-/lw=O HI: /lJ-/lwF O o~s '. Sampling Distribution = t di...

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