please answer 1 & 2 The National Highway Safety Administration recognizes that the antilock braking system as a revolutionary safety feature. The claim is that automobiles with this system are involved in fewer fatal crashes than those without. State the null and the alternative hypothesis to test this claim. An economist believes that there is a positive correlation between income and percent of disposable income saved by young adults. To test this, a sample of income and saving data is gathered from the Division of Taxation for adults under the age of 35. State the null and the alternative hypothesis to test this claim.
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.
please answer 1 & 2
-
The National Highway Safety Administration recognizes that the antilock braking system as a revolutionary safety feature. The claim is that automobiles with this system are involved in fewer fatal crashes than those without. State the null and the alternative hypothesis to test this claim.
-
An economist believes that there is a
positive correlation between income and percent of disposable income saved by young adults. To test this, a sample of income and saving data is gathered from the Division of Taxation for adults under the age of 35. State the null and the alternative hypothesis to test this claim.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
