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

Author Question: In testing the difference between two population means for which the population variances are ... (Read 116 times)

awywial

  • Hero Member
  • *****
  • Posts: 577
on: Jun 24, 2018
In testing the difference between two population means for which the population variances are unknown and not assumed to be equal, two independent samples are drawn from the populations. Which of the following tests is appropriate?
 a. z-test c. unequal variances t-test
  b. pooled-variances t-test d. None of these choices.

Question 2

We calculate the three-period moving average for a time series for all time periods except the first period.
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Benayers

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jun 24, 2018
Answer to Question 1

C

Answer to Question 2

F


awywial

  • Member
  • Posts: 577
Reply 2 on: Jun 24, 2018
YES! Correct, THANKS for helping me on my review

ashely1112

  • Member
  • Posts: 347
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Gram Negative Testing Gram Negative Testing
In the summer of 1793, a yellow fever epidemic struck Philadelphia, killing nearly 4,000. Tens of th In the summer of 1793, a yellow fever epidemic struck Philadelphia, killing nearly 4,000. Tens of th
Sensitivity Testing Sensitivity Testing
Population growth in India, China, Africa, and other countries in the developing world Population growth in India, China, Africa, and other countries in the developing world
World Population, 1850–2150 World Population, 1850–2150
Resting Membrane Potential: Voltage Difference Resting Membrane Potential: Voltage Difference
Video: Atrophy

For a complete list of videos, visit our video library