# 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: ParticularlySignificant DifferenceAsian AmericansDistributionThe IndependentSmall SampleAssociationLevel of MeasurementContingencyPresentations

## Sample Document Text

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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