This topic contains a solution. Click here to go to the answer

Author Question: In testing the difference between two population means for which the population variances are ... (Read 92 times)

awywial

  • Hero Member
  • *****
  • Posts: 577
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
Answer to Question 1

C

Answer to Question 2

F




awywial

  • Member
  • Posts: 577
Reply 2 on: Jun 24, 2018
Gracias!


pangili4

  • Member
  • Posts: 346
Reply 3 on: Yesterday
Excellent

 

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

For a complete list of videos, visit our video library