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Helper Functions

linear_combination()
Test a single linear restriction of a model
se_meanx() se_rxy() se_sx()
Asymptotic Standard Errors
test_linear_restrictions()
Test multiple linear restrictions simultaneously
var_mean_indep() var_mean_onesample() var_prop_indep()
Variance helper functions
wald_test()
Wald test statistic and p-value

Datsets

auctions
Auction data
babynames
Popular names data
baseball
Baseball attendance data
births
Birth outcome data
bitcoin
Bitcoin price and returns data
brands
Brand data
cigdata
State-level cigarette price and tax data
congress
Congressional election data
cps
Current Population Survey (CPS) data
dictator
Dictator-game data
exams
Exam data
houseprices
Housing price data
hrs
Health-expenditure data
inflation
Inflation data
inflation_expectations
Inflation expectations data
married
Married-couple data
metricsgrades
Econometrics course data
mutualfunds
Mutual-fund performance data
premier
Premier League soccer data
resume
Resume response data
sp500
Monthly returns data for S&P 500 companies
strikes
Strike duration data
website
Website visitor arrival data
widgets
Hypothetical data for widgets.com website