Question

Investigators need to study the impact of the Coronavirus outbreak. It is of interest to understand how the number of hospitalizations in a particular state is associated with three predictors including the number of tests available, whether the social distancing measures are taken, and the overall population size. Answer the questions below: 1. Identify the outcome variable and its type (continuous, or binary, or count). 2. What are the predictor variables? 3. (Give the name of the model that you would like to use for this problem, and explain the reason for using the model. Do not need to write down the mathematical expression of the model.

Answer 1

1. The outcome variable means the dependent variable also known as the response variable and predictor variable means the independent variable .

The Outcome Variable here is the count of hospitalisation can be expressed a a function of the 3 predctor variables

That is where X1, X2 and X3 are the three predictors

Since Y represents the count of hopitalisation it can take only absolute values and hence it can be expressed as count

2. The predictor cariables are X1= Number of tests available

X2= Whether social distancing measure are taken  or not

X3= Over all Populataion size

these are the independent variables and are known are predictors and normally they are the independent varaibles and can be manipulated means take any value .

3. Regression analysis - This is the powerful tool used to study the relationship between a dependent variable with 2 or more independent variable.

Here we have the out come variable as dependent variable and 3 predictors as independent variable so the regression analysis will be the best fit for this .