Author Question: In binary regression, probability data for predicting binary variables is transformed using a. an ... (Read 191 times)

SO00

  • Hero Member
  • *****
  • Posts: 568
In binary regression, probability data for predicting binary variables is transformed using
 a. an exponential transformation c. the logarithm of the odds
  b. a geometric transformation d. dummy variables

Question 2

Compare and contrast Type I errors and Type II errors and explain which one is of more concern to researchers.



GCabra

  • Sr. Member
  • ****
  • Posts: 331
Answer to Question 1

C
By using the log-odds transformation, it is possible to logistic regression for binary dependent variables.

Answer to Question 2

Hypothesis testing using sample observations is based on probability theory. Because we cannot make any statement about a sample with complete certainty, there is always the chance that an error will be made. The researcher using sampling runs the risk of committing two types of errors. A Type I error occurs when a condition that is true in the population is rejected based on statistical observations. When a researcher sets an acceptable significance level a priori (), he or she is determining how much tolerance he or she has for a Type I error. When testing for relationships, a Type I error occurs when the researcher concludes a relationship exists when in fact one does not exist. A Type II error is the probability of failing to reject a false null hypothesis. Alternatively, one can think of this as failing to identify a hypothesized difference using a sample result when one really does exist in the population. This incorrect decision is called beta (), Type I errors generally are considered more serious than Type II errors. Thus, more emphasis is placed on determining the significance level, , than in determining



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

GCabra

  • Sr. Member
  • ****
  • Posts: 331

 

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

For a complete list of videos, visit our video library