# Create MCQs from "regression analysis" Chapter for undergraduate students with answers

## Quiz by Amjad Shamim

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- Q1Which of the following is true about regression analysis?It is a technique used to analyze categorical data.It is a statistical technique used to model the relationship between a dependent variable and one or more independent variables.It is a qualitative research method.It is a technique used to analyze time series data.It is a method to determine causation.30s
- Q2What is the purpose of hypothesis testing in regression analysis?To estimate the regression coefficients.To determine if there is a statistically significant relationship between the independent variable(s) and the dependent variable.To calculate the coefficient of determination (R-squared).To identify multicollinearity among independent variables.To assess the appropriateness of the regression model using residual analysis.30s
- Q3What is the difference between simple linear regression and multiple linear regression?Simple linear regression is used for time series analysis, while multiple linear regression is used for cross-sectional data.Simple linear regression is used for categorical variables, while multiple linear regression is used for continuous variables.Simple linear regression does not assume a linear relationship, while multiple linear regression assumes a linear relationship.Simple linear regression involves one independent variable and one dependent variable, while multiple linear regression involves one dependent variable and two or more independent variables.Simple linear regression does not require any assumptions, while multiple linear regression requires multiple assumptions.30s
- Q4What is the purpose of a scatter plot in regression analysis?To calculate the coefficient of determination (R-squared).To determine the statistical significance of the regression coefficients.To visualize the relationship between two continuous variables.To assess the assumptions of linearity and independence in regression analysis.To estimate the regression coefficients.30s
- Q5What is a regression line?A line that divides the scatter plot into two equal halves.A line that best fits the data points in a scatter plot.A line that connects the highest and lowest data points.A line that intersects the x-axis at the origin.30s
- Q6What is the slope of a regression line?The y-intercept of the regression line.The average of the dependent variable values.The correlation coefficient between two variables.The measure of change in the dependent variable for each unit change in the independent variable.30s
- Q7In regression analysis, what does the p-value measure?The probability of obtaining the observed data or more extreme values, assuming the null hypothesis is true.The average value of the dependent variable.The explained variation in the dependent variable.The correlation coefficient between the independent variable(s).30s
- Q8What does the y-intercept of a regression line represent?The average value of the dependent variable.The rate of change in the dependent variable for each unit change in the independent variable.The measure of the overall fit of the regression line.The predicted value of the dependent variable when the independent variable is zero.30s
- Q9What is the significance level typically set at in regression analysis?0.100.050.010.2530s
- Q10What is the null hypothesis in regression analysis?There is a significant relationship between the variablesThere is no relationship between the independent variable and the dependent variableThe dependent variable predicts the independent variableThe independent variable causes changes in the dependent variable30s