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***HYPOTHESIS TESTING I: THE ONE-SAMPLE CASE (chapter 8)
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***OPENING COMMANDS
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***Clear memory
clear all

***Start saving results window
log using "C:\course\progs\Stata08.log", replace text // Windows
log using "/course/progs/Stata08.log", replace text // Macintosh

***Open 2016 GSS
use "C:\course\data\GSS2016.dta", clear // Windows
use "/course/data/GSS2016.dta", clear // Macintosh

***Complex survey design
svyset [weight=wtssall], strata(vstrat) psu(vpsu) singleunit(scaled)

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***ONE-SAMPLE Z-TEST AND t-TEST
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***Personal income
***of sample of adult population (18+)
***compared to population 15+ (U.S. Census Bureau)
***https://fred.stlouisfed.org/series/MEPAINUSA672N

***Mean personal income
svy: mean conrinc
mean conrinc

***Z-test
ztest conrinc=31099

***t-test
ttest conrinc=31099

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***ONE-SAMPLE TEST OF PROPORTIONS
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***Gender composition
***of sample of adult population (18+)
***compared to overall population (U.S. Census Bureau)
***https://www.census.gov/quickfacts/fact/table/US/PST045216

***Generate dummy variable for female
tab sex
tab sex, nolabel

generate female=.
  replace female=0 if sex==1
  replace female=1 if sex==2

tab sex female, m
tab female

***Proportion test
prtest female=.508

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***CLOSING COMMANDS
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***Save data
save "Stata08.dta", replace

***Save log
log close