ECON 222 • Final • Introduction to Probability and Statistics II

Confidence Interval For Difference Between Means ( sigma known)

Example 1

Example 2

Example 3

Exam-like Question 1

Exam-like Question 2

Confidence Interval For Difference Between Means ( sigma unknown)

Example 1

Example 2

Exam-like Question

Confidence Interval for Difference Between Proportions

Example 1

Example 2

Confidence Interval for Ratio of Variances

Example

Chapter Summary

Tests for Difference Between Means

Example 1

Example 2

Example 3

Example 4

Exam like Question 1

Tests for Ratio of Two Variances

Example 5

Example 6

Exam like Question 2

Tests Among k Proportions

Example 7

Regression Equations

Example 1

Example 2

Linear Regression

Example 3

Example 4

Example 5

Errors in SLR

Example 1

Some Important Formulas

Slope Paremeter

Test for Slope Parameter

Confidence Interval for Slope Parameter

Example 2

Introduction

Example 1

Errors in Multiple Linear Regression

Coefficients in Multiple Linear Regression

Tests for Significance of Regression

Tests for Individual Regression Coefficient

Coefficient of Determination

Example 2

Example 3

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Question 10

Question 11

Question 12

Question 13

Question 14

Question 15

Question 16

Understanding Data 1

Sampling Distribution 1

Sampling Distribution 2

Sampling Distribution 3

Sampling Distribution 4

Sampling Distribution 5

Sampling Distribution 6

Point Estimation 1

Confidence Interval 1

Confidence Interval 2

Confidence Interval 3

Confidence Interval 4

Confidence Interval 5

Confidence Interval 6

Confidence Interval 7

Confidence Interval 8

Hypothesis Testing 1

Hypothesis Testing 2

Hypothesis Testing 3

Hypothesis Testing 4

Hypothesis Testing 5

Hypothesis Testing 6

Cheat Sheet

Summary