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

Author Question: Explain what the statement of the null hypothesis represents in hypothesis testing. Give an ... (Read 118 times)

wrbasek0

  • Hero Member
  • *****
  • Posts: 560
on: Jul 24, 2018
Explain what the statement of the null hypothesis represents in hypothesis testing. Give an example.

Question 2

Suppose on a highway with a speed limit of 65 mph, the speed of cars are independent and normally distributed with an average speed = 65 mph and standard deviation = 5 mph. What is the standard deviation for the sample mean speed in a random sample of n = 10 cars?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Eunice618

  • Sr. Member
  • ****
  • Posts: 350
Reply #1 on: Jul 24, 2018
Answer to Question 1

The null hypothesis is the status quo, or no relationship, or no difference. An example of a null hypothesis is that there is no difference between the proportion of men and women who favor the death penalty.

Answer to Question 2

1.58 mph


wrbasek0

  • Member
  • Posts: 560
Reply 2 on: Jul 24, 2018
YES! Correct, THANKS for helping me on my review

nanny

  • Member
  • Posts: 313
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

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?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

How to give a Lovenox injection How to give a Lovenox injection
Testing the patellar reflex with a percussion hammer. Testing the patellar reflex with a percussion hammer.
Testing motor function of cranial nerve VII - Show teeth Testing motor function of cranial nerve VII - Show teeth
Please fully explain in detail Please fully explain in detail
How the multiple-factor hypothesis accounts for the 1:4:6:4:1 phenotypic ratio How the multiple-factor hypothesis accounts for the 1:4:6:4:1 phenotypic ratio
A hypothesis test is performed to test the claim that a population proportion is greater than ... A hypothesis test is performed to test the claim that a population proportion is greater than ...
Video: Embryonic development - Weeks 5 to 8

For a complete list of videos, visit our video library