A study was designed to compare Red Bull energy drink commercials. Each participant was shown the commercials, A and B in random order and asked to select the better one. There were 165 women and 145 men who participated in the study. Commerical A was selected by 90 women and 48 men. For all answers below, include at least 3 decimals of precision Find the odds of selecting Commercial A for the men and for the women. (a) Odds of women choosing Commerical A: (b) Odds of men choosing Commercial A: Find the log-odds of selecting Commerical A for men and for women (c) Log-odds of women choosing Commerical A: (d) Log-odds of men choosing Commerical A: Encoding x-0 for men and x-1 for women, do a logistic regression. Find the logistic regression equation: (e) Log-odds(Commercial A) -
Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.
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