Khan Academy
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Linkage institutions and political parties7:312,949
Voter Turnout10:802,378
Models of voting behavior5:183,913
Demand curve for money in the money market8:152,558
Equilibrium nominal interest rates in the money market3:592,254
Calculating two sample z interval (confidence interval for difference of proportions)5:411,667
Examples identifying conditions for two sample z-tests and z-intervals4:361,079
Confidence intervals for the difference between two proportions8:434,815
Core beliefs around the role of government in the US8:322,188
Judicial constraint vs judicial activism8:182,217
Automatic stabilizers | APⓇ Macroeconomics | Khan Academy5:163,493
Rule making and discretionary authority of the federal bureaucracy5:231,909
Another average velocity and speed example3:132,751
Average velocity and speed worked example4:521,850
Money creation in a fractional reserve system | APⓇ Macroeconomics | Khan Academy8:903,530
Introduction to the federal bureaucracy4:573,845
Iron triangles and issue networks3:432,286
Congressional oversight of executive bureaucracy4:283,041
Executive and legislative reactions to disagreements with Supreme Court6:204,069
Presidents' bully pulpit5:557,825
Expansion of presidential power9:484,067
Senate check on presidential appointments3:363,671
Divided government and gridlock in the United States5:432,660
Introduction to lipids5:436,143
Introduction to nucleic acids and nucleotides5:553,099
Introduction to carbohydrates4:286,609
Introduction to proteins and amino acids5:535,995
Fiscal policy to address output gaps | APⓇ Macroeconomics | Khan Academy6:562,242
Calculating change in spending or taxes to close output gaps6:541,921
How to calculate interquartile range IQR | Data and statistics | 6th grade | Khan Academy6:12198,331
Long run self adjustment4:442,191
Short run and long run equilibrium and the business cycle10:115,934
Winners and losers from inflation and deflation6:144,449
Example question calculating CPI and inflation7:452,971
Comparing P values to significance levels4:413,200
AP Statistics free response on significance test for mean11:533,025
Comparing P value from t statistic to significance level3:39742
Calculating P value from t statistic4:532,035
Using TI calculator for P value from t statistic3:191,866
Conditions for a t test about a proportion5:332,547
Example calculating t statistic for a test about a mean5:203,997
When to use z or t statistics in significance tests4:513,637
Conditions for a t test for a mean5:483,079
Writing hypotheses for significance test about means2:34941
Calculating P value from z table5:273,512
Comparing P value to significance level example5:141,831
Full significance test example from AP test13:201,935
Calculating a z statistic in a significance test4:514,533
Article VI of the Constitution | US Government and Politics | Khan Academy13:522,901
Article V of the Constitution | US Government and Politics | Khan Academy17:121,500
Article IV of the Constitution | US Government and Politics | Khan Academy13:592,026
Constructing hypotheses for a significance test4:161,791
Gerrymandering6:005,028
Representatives as delegates, trustees and politicos6:182,098
Tax multiplier, MPC and MPS7:583,117
Natural, cyclical, structural and frictional unemployment rates | Khan Academy5:393,244
Limitations of GDP | AP® Macroeconomics | Khan Academy7:543,459
Article III of the Constitution | US Government and Politics | Khan Academy16:573,104
Article II of the Constitution | US Government and Politics | Khan Academy17:472,360
Article I of the Constitution | US Government and Politics | Khan Academy13:232,505
The Preamble to the Constitution | US Government and Politics | Khan Academy14:553,321
Expenditure approach to calculating GDP examples | AP® Macroeconomics | Khan Academy8:601,626
Impact of mutations on translation into amino acids8:523,601
Meet Sean, a creator of AP Physics on Khan Academy2:607,171
Meet Kim, one of the creators of Khan Academy's AP US History lessons1:453,892
Examples thinking about power in significance tests4:221,761
Introduction to Power in significance tests9:452,403
Examples identifying Type I and Type II errors5:442,221
Introduction to Type I and Type II errors5:302,217
Comparing p-values to significance levels4:442,281
Estimating p value from simulation4:455,542
p values and significance tests7:588,955
Examples of null and alternative hypotheses5:425,511
Diagramming how a bill becomes a law in the U.S.7:188,165
Senate filibusters and cloture6:501,650
Ohm's Law and basic circuits9:4712,778
A heartfelt thank you from Khan Academy!1:2549,687
How to recognize relative and absolute maxima and minima | Functions | Algebra I | Khan Academy4:589,147
Arteries vs. veins-what's the difference? | Circulatory system physiology | NCLEX-RN | Khan Academy7:4424,619
Relative maxima and minima worked example1:491,368
Presidential signing statements5:143,621
Executive Orders8:803,512
Formal and informal powers of the US President8:103,486
Earmarks, pork barrel projects and logrolling9:352,531
Discretionary and mandatory outlays of the US Federal Government6:243,740
The House of Represenatives in comparison to the Senate5:225,199
Senate filibusters, unanimous consent and cloture6:422,266
How a bill becomes a law10:375,045
Introduction to the public policy process5:472,263
Sample size for a given margin of error for a mean7:422,886
Confidence interval for a mean difference9:461,715
Calculating a one-sample t interval for a mean5:581,745
Conditions for valid t intervals4:541,765
Example finding critical t value3:591,566
Simulation showing value of t statistic3:141,221
Introduction to t statistics4:263,825
Determining sample size based on confidence and margin of error8:103,979
Example calculating confidence interval6:353,160
Sample statistic bias worked example2:518,981
Critical value for a given confidence level6:225,205



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