## Calculus: Derivatives and Differentiation

Overview of topic: -Differentiation: a technique for measuring the slope at a curve at any point. -Newton and Leibniz in the seventeenth century not only defined the slope of the curve at any point as being the slope of the tangent to the curve at that point, but also showed how the slope could be … Continue reading Calculus: Derivatives and Differentiation

## 4-Step Hypothesis Question & Answers

A researcher wishes to test the claim that the average cost of tuition and fees at a four-year public college is greater than \$5700. She selects a random sample of 25 four year public colleges and finds the mean to be \$5950. The population standard deviation is \$659. Is there evidence to support the claim … Continue reading 4-Step Hypothesis Question & Answers

## OLS Regression STATA Output

Consider the following estimation from Microfit: Ordinary Least Squares Estimation  Dependent variable is LC (49 observations) used for estimation from (1950-1998): LC: Log of real customers expenditure in 1995 prices. LY: Log of real personal disposable income in 1995 prices. LP: Log of the consumer price index.   a) Briefly explain what the results tell … Continue reading OLS Regression STATA Output

## 2nd Worksheet OLS Results Analysis

Consider the second OLS results for a Lgpa model in which international student, ATAR, Exam night study time, study time, exam night study time squared and a constant. Number of jobs = 924 F (6, 924) = 81.21 Prob > F = 0.000 R squared = 0.2103 Adjusted R squared = 0.2088   Lgpa    … Continue reading 2nd Worksheet OLS Results Analysis

## Worksheet OLS Results Analysis

Consider the following OLS results for a wage model in which education, tenure, tenure squared, experience, experience squared and a dummy variable equal to 1 if the individual is a female and zero otherwise are the explanatory variables: Number of jobs = 526 F (6, 519) = 68.18 Prob > F = 0.000 R squared … Continue reading Worksheet OLS Results Analysis