« previous next »

Author Question: Under what conditions can the t-distribution be correctly employed to test the difference between ... (Read 40 times)

jeatrice

  • Hero Member
  • *****
  • Posts: 543
on: Jun 24, 2018
Under what conditions can the t-distribution be correctly employed to test the difference between two population means?
 
  A) When the samples from the two populations are small and the population variances are unknown
  B) When the two populations of interest are assumed to be normally distributed
  C) When the population variances are assumed to be equal
  D) All of the above

Question 2

In determining the sample size requirement for an application involving the estimation of the proportion of department store customers who pay using the store's credit card,
 
  the closer the true proportion is to .5, the larger will be the required sample size for a given margin of error and confidence level.
   Indicate whether the statement is true or false


okolip

  • Sr. Member
  • ****
  • Posts: 362
Reply #1 on: Jun 24, 2018
Answer to Question 1

D

Answer to Question 2

TRUE


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Weber Test Weber Test
Distribution of Rods and Cones on the Retina Distribution of Rods and Cones on the Retina
Various types of integumentary conditions. (G) Burn, second degree. Various types of integumentary conditions. (G) Burn, second degree.
The Wisconsin Card Sorting Test. This woman is just starting the test. If she places the first card ... The Wisconsin Card Sorting Test. This woman is just starting the test. If she places the first card ...
Rinne test. Bone conduction Rinne test. Bone conduction
Morgan’s test-cross analysis of genetic linkage between autosomal genes Morgan’s test-cross analysis of genetic linkage between autosomal genes
Video: Mechanism of enzyme action

For a complete list of videos, visit our video library