This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The t statistic and the partial F statistic are closely related. Explain this relationship. Which ... (Read 84 times)

schs14

  • Hero Member
  • *****
  • Posts: 569
on: Jun 24, 2018
The t statistic and the partial F statistic are closely related. Explain this relationship. Which would you prefer to use?
 
  What will be an ideal response?

Question 2

The probability of rejecting a null hypothesis when the null hypothesis is true is known as the:
 
  A) confidence level.
  B) p-value.
  C) power of the test.
  D) significance level.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kristenb95

  • Sr. Member
  • ****
  • Posts: 318
Reply #1 on: Jun 24, 2018
Answer to Question 1

In multiple regression analysis, the t statistic is used to test if an individual population slope coefficient is significantly different from zero  where the coefficient is the change in the dependent variable given a unit change in the independent variable, while all other explanatory variables are held constant. Essentially, it tells us whether that particular explanatory variable makes a significant contribution to the model. The partial F statistic is used to test if an individual explanatory variable or a set of individual explanatory variables is significant to the model, holding all other variables fixed. So, for the individual problem, the F statistic and the t statistic must produce identical results and they do, because t2 = F in these cases. As you might guess, t is more widely used because it is much easier to calculate and access from statistical packages.

Answer to Question 2

D


schs14

  • Member
  • Posts: 569
Reply 2 on: Jun 24, 2018
Wow, this really help

kilada

  • Member
  • Posts: 311
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Steric relationship of the stereoisomers of alanine to the absolute configuration of L Steric relationship of the stereoisomers of alanine to the absolute configuration of L
Procedures for Diagnostic Tests Related to the Musculoskeletal system Procedures for Diagnostic Tests Related to the Musculoskeletal system
Procedures and Diagnostic Tests Related to the Urinary System Procedures and Diagnostic Tests Related to the Urinary System
Dental Related Adverse Effects in Patients Undergoing Cancer Treatment Dental Related Adverse Effects in Patients Undergoing Cancer Treatment
The level of future emissions is closely linked to the rate of population growth The level of future emissions is closely linked to the rate of population growth
Humans are related to Earth’s other organisms Humans are related to Earth’s other organisms
Video: Electrical changes in the heart

For a complete list of videos, visit our video library