In logistic regression the logit is.... (A) the natural logarithm of the odds. (

Question

In logistic regression the logit is.... (A) the natural logarithm of the odds. (B) an instruction to record the data. (C) a logarithm of a digit. (D) the cube root of the sample size. A dummy variable: (A) is the smallest realistic value of a variable. (B) is an irrelevant, misleading variable. (C) is a measure of intelligence. (D) is one nominal category versus all of the other nominal categories of a variable. A Maximum Likelihood Estimator (in the statistical sense) (A) Is the same as a p value (B) Is the probability of observing a particular parameter value given a set of data (C) attempts to find the parameter value which is the most likely given the observed data (D) Is the same as R Square Which one of the following statements is true? (A) Given the same data, the R^2 value always increases when you add an additional predictor in the model. (B) If Mallow's Cp

Explanation / Answer

1. In logistic regression Logit is

(A) A Natural logarithm of the odds

2. A dummy variable is

(D) One nominal category versus all the other nominal categories of the variable

3. A maximum likelihood estimator is

(c) attempts to find the parameter value which is the most likely given the observed data

4. True statement

(A) Given the same data the R square value always increases when you add an additional parameter in the model

5. Answer is (D) None of the above

If the data set include influential point it can be linear or non linear. Influential points may increase or decrease the coefficient of determnation. All outliers are not influentail points. Only those outliers who have big effect on regerssion equation are influential points.

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