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 493 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
Wow, this really help

nothere

  • Member
  • Posts: 324
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

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?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Mutualisms, such as those that occur among plants and pollinators, generally involve large numbers o Mutualisms, such as those that occur among plants and pollinators, generally involve large numbers o
Calories Expended during Selected Activities Calories Expended during Selected Activities
Selected skeletal muscles (anterior view). Selected skeletal muscles (anterior view).
Selected Adjuncts to Anesthesia Selected Adjuncts to Anesthesia
Selected OTC Antihistamine Combinations Selected OTC Antihistamine Combinations
Selected Common Neurotransmitters Selected Common Neurotransmitters
Video: Hemodynamics Animation

For a complete list of videos, visit our video library