Question: A business owner wants to know the proportion of customers that do not buy a product in two stores. The owner is interested to know if the proportion of store 1 is greater than store 2. The data available is the following: n1=125, x1=10 customers, n2=D135, x2=5 customers. Use 4 digits after decimal point a. Find Z0: b. Write "fail to reject HO" or "Reject HO" based in your calculations: c. Find P-value
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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