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

Author Question: Two thousand numbers are selected randomly; 960 are even numbers. a. State the hypotheses to ... (Read 437 times)

ss2343

  • Hero Member
  • *****
  • Posts: 548
on: Aug 1, 2018
Two thousand numbers are selected randomly; 960 are even numbers.
 a. State the hypotheses to determine whether the proportion of odd numbers is significantly different from 50.
  b. Compute the test statistic.
  c. At the .10 level of significance using the p-value approach, test the hypotheses.

Question 2

A law enforcement agent believes that at least 88 of the drivers stopped for speeding on Saturday nights are under the influence of alcohol. A sample of 66 drivers who were stopped for speeding on a Saturday night was taken. Eighty percent of the drivers in the sample were under the influence of alcohol.
 a. State the null and alternative hypotheses.
  b. Compute the test statistic.
  c. Using the p-value approach, test the hypotheses at the .05 level of significance.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cloudre37

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

a . H0: p = .5
Ha: p  .5
b. z = 1.79
c. p-value = .0734 < .10; reject H0

Answer to Question 2

a . H0: p .88
Ha: p < .88
b. z = -2
c. p-value = .0228 < .05; reject H0


ss2343

  • Member
  • Posts: 548
Reply 2 on: Aug 1, 2018
Great answer, keep it coming :)

amandalm

  • Member
  • Posts: 306
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

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.

Abortion Rates by State, 2008 Abortion Rates by State, 2008
Selected Disease-Modifying Antirheumatic Drugs Selected Disease-Modifying Antirheumatic Drugs
Vapor Densities of Selected Chemicals Vapor Densities of Selected Chemicals
Specific Gravity of Selected Materials Specific Gravity of Selected Materials
Enthalpic stabilization of the transition state in an enzyme-catalyzed reaction Enthalpic stabilization of the transition state in an enzyme-catalyzed reaction
Answers only. These are numbers 9-10 Answers only. These are numbers 9-10
Video: Febrile Seizure

For a complete list of videos, visit our video library