« previous next »

Author Question: For a two-tail test, the null hypothesis will be rejected at the 0.05 level of significance if the ... (Read 119 times)

scienceeasy

  • Hero Member
  • *****
  • Posts: 565
on: Jun 24, 2018
For a two-tail test, the null hypothesis will be rejected at the 0.05 level of significance if the value of the standardized test statistic z is:
 a. smaller than 1.96 or greater than -1.96
  b. greater than -1.96 or smaller than 1.96
  c. smaller than -1.96 or greater than 1.96
  d. greater than 1.645 or less than -1.645

Question 2

If the odds ratio that an obese person who smokes 15 or more cigarettes per day suffers a heart attack is 9, then the probability that the person will suffer a heart attack is 0.81.
  Indicate whether the statement is true or false


ilianabrrr

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jun 24, 2018
Answer to Question 1

C

Answer to Question 2

F


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Snow leopard at zoo d'Amneville, France, showing the thickly furred tail Snow leopard at zoo d'Amneville, France, showing the thickly furred tail
Performing a Spirometry Test to Measure Forced Vital Capacity Performing a Spirometry Test to Measure Forced Vital Capacity
Drive-on ramps are dangerous to use. The wheels on the ground level must be chocked (blocked) to ... Drive-on ramps are dangerous to use. The wheels on the ground level must be chocked (blocked) to ...
The fuel level must be above 15% and below 85% before the EVAP monitor will run on most vehicles. The fuel level must be above 15% and below 85% before the EVAP monitor will run on most vehicles.
Mantoux tuberculin skin test. Mantoux tuberculin skin test.
Finger-to-nose test Finger-to-nose test
Video: Steps of glucose catabolism

For a complete list of videos, visit our video library