TAILIEUCHUNG - Lecture Statistical techniques in business and economics - Chapter 15: Chi-square applications

Chapter 15 - Chi-square applications, when you have completed this chapter, you will be able to: Understand the nature and role of chi-square distribution, identify a wide variety of uses of the chi-square distribution, conduct a test of hypothesis comparing an observed frequency distribution to an expected frequency distribution,. | Chi-Square Distribution Chapter 15 15 - Chapter Goals Understand the nature and role of chi-square distribution Identify a wide variety of uses of the chi-square distribution Conduct a test of hypothesis comparing an observed frequency distribution to an expected frequency distribution When you have completed this chapter, you will be able to: and. 15 - Conduct a hypothesis test to determine whether two attributes are independent Chapter Goals 10 Conduct a test of hypothesis for normality using the chi-square distribution 15 - Characteristics of the Chi-Square Distribution it is positively skewed it is non-negative it is based on degrees of freedom when the degrees of freedom change a new distribution is created . 15 - df = 3 df = 5 df = 10 c2 Characteristics of the Chi-Square Distribution 15 - Goodness-of-Fit Test: Equal Expected Frequencies Let f0 and fe be the observed and expected frequencies respectively H0: There is no difference between the .

• Kinh tế học
• Statistical techniques
• Statistical techniques in business
• Statistical techniques in economics
• Descriptive statistics
• Chi square applications
• Test of hypothesis
• Statistical inference
• Independent samples
• Statistical process control
• Quality management
• Random observation
• Sampling methods
• Central limit theorem
• Confidence intervals
• Point estimator
• Confidence interval
• Hypothesis testing
• Alternative hypothesis
• Analysis of variance
• F distribution
• Linear regression
• Coefficient of correlation
• Multiple regression
• Multiple regression analysis
• Analysis of ranked data
• Kruskal Wallis test
• Index numbers
• Consumer price index
• Time series
• Linear trend equation
• Decision making
• Organize information
• The role of statistics
• Qualitative variable
• Describing data
• Frequency distribution
• Central tendency
• Standard deviation
• Ungrouped data
• Probability concepts
• Random experiment
• Discrete probability distributions
• Continuous random variables
• Decision theory
• Decision alternative
• Inferential statistics
• Frequency tables
• Numerical measures