Information about ECO202 formulae

Formulas compiled for Statistics for economics

For Mr. Iftekharul Haque's class

For Mr. Iftekharul Haque's class

Sampling Distribution of Sample Proportion: P= population proportion ˆ X ˆ P = sample proportion P n ˆ 0≤ P≤1 ˆ P has a binomial distribution, but can be approximated by a normal distribution when nP(1 – P) > 9 ˆ E( P) p Z X P(1 P) σ 2 Var ˆ P n n ˆ PP σP ˆ ˆ PP P(1 P) n Chapter 8 If P(a < < b) = 1 - (1 - ) is called the confidence level then the interval from a to b is called a 100(1 - )% confidence interval of . Confidence Intervals for σ2 Known: z table Point Estimate ± (Reliability Factor)(Standard Error) x z α/2 σ n Where margin of error= ME z α/2 σ n W= 2ME The margin of error can be reduced if the population standard deviation can be reduced (σ↓) The sample size is increased (n↑) The confidence level is decreased, (1 – ) ↓ Confidence Intervals for σ2 Unknown: t table x μ x =mean, s=standard deviation s/ n t degrees of freedom= v= n-1 P(t n 1 t n 1,α/2 ) α/2

x t n -1,α/2 S S μ x t n -1,α/2 n n where tn-1,α/2 is the critical value Confidence Intervals for the Population Proportion, p: P(1 P) n σP ˆ p z α/2 ˆ ˆ ˆ ˆ p(1 p) p(1 p) ˆ P p z α/2 n n Chapter 10 Key: Outcome (Probability) The power of a test is the probability of rejecting a null hypothesis that is false Power = P(Reject H0 | H1 is true) Power of the test increases as the sample size increases If Calculated z < Critical zα = Do not reject Ho If Calculated z > Critical zα = Reject Ho

p-Value Approach to Testing Smallest value of for which H0 can be rejected For two-tail Tests of the Population Proportion: σp ˆ P(1 P) n

Marginal Cost (MC): Definition: Marginal Cost is an increase in total cost that results from a one unit increase in output.

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Marginal Tax Rates . In contrast to ETRs, the MTR computation focuses on the tax rate attributable to a specific project, asset, activity, or venture.

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Labor economics seeks to understand the functioning and dynamics of the markets for wage labor. Labor markets or job markets function through the ...

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Brand: Ecological Formulas SKU: ECO202 MPN: COQSG . Co-Enzyme Q10 promotes cardiovascular, liver, kidney, and reproductive health. Retail Price: $26.95 ...

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Calculating Tax Liability 2012 - Duration: 2:32. TaxTutor2012 4,760 views. 2:32 All Up In Yo' Business: How Do I Pay Myself in a Single-Member ...

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Economics 101. Fall 2001. Answers to Practice Questions 9. Question 1: Add a third column to the table to calculate the marginal revenue product as follows:

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How to Calculate Taxable Income & Tax Liability by Marguerite Madison, Demand Media

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Chapter 5 Elasticity of Demand and Supply ... demand formula which is ... 41 change in quantity demanded . sum of quantities/2 . divided by. change in price .

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Trident ECO202 Module 3 Case and SLP. Module 3 - Case. THE MONEY MARKET. Case Assignment. Submit a 4- to 5-page paper that addresses the following questions.

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Brand: Ecological Formulas SKU: ECO202 MPN: COQSG . Co-Enzyme Q10 promotes cardiovascular, liver, kidney, and reproductive health.

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