A random sample of air travelers were surveyed and a 95% confidence interval for the average arrival time before departure for all air travelers was calculated to be (98 minutes, 110 minutes). For each of the 3 questions, select the appropriate answer of Yes, No, or Can't Tell. 1. Is the resulting sample mean (x) arrival time in the interval (98 minutes, 110 minutes)? [ Select ] 2. Is 12 minutes the margin of error for this 95% confidence interval? [ Select ] 3. Suppose that a 98% confidence interval is made using the same data. Would the 98% confidence interval be narrower than the original 95% confidence interval v [ Select ] No Yes Can't Tell

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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.