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

Author Question: If two independent large samples are taken from two populations, the sampling distribution of the ... (Read 102 times)

Brittanyd9008

  • Hero Member
  • *****
  • Posts: 500
on: Aug 1, 2018
If two independent large samples are taken from two populations, the sampling distribution of the difference between the two sample means
 a. can be approximated by any distribution.
  b. will have a variance of one.
  c. can be approximated by a normal distribution.
  d. will have a mean of one.

Question 2

Two independent simple random samples are taken to test the difference between the means of two populations whose standard deviations are not known, but are assumed to be equal. The sample sizes are n1 = 25 and n2 = 35 . The correct distribution to use is the
 a. t distribution with 61 degrees of freedom.
  b. t distribution with 60 degrees of freedom.
  c. t distribution with 59 degrees of freedom.
  d. t distribution with 58 degrees of freedom.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Laurenleakan

  • Sr. Member
  • ****
  • Posts: 309
Reply #1 on: Aug 1, 2018
Answer to Question 1

c

Answer to Question 2

d


Brittanyd9008

  • Member
  • Posts: 500
Reply 2 on: Aug 1, 2018
Thanks for the timely response, appreciate it

carlsona147

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

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?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Large size can provide a refuge from predators. While young African elephants may be vulnerable to p Large size can provide a refuge from predators. While young African elephants may be vulnerable to p
School-age children are often independent and industrious, with a developing sense of self-confidenc School-age children are often independent and industrious, with a developing sense of self-confidenc
Large Mouse-Ear Hawkweed Large Mouse-Ear Hawkweed
Indigenous Populations Indigenous Populations
Apply light effleurage around abdomen in a large circle with the palm of a flat hand. Apply light effleurage around abdomen in a large circle with the palm of a flat hand.
Biodiversity and the unevenly distribution on the planet Biodiversity and the unevenly distribution on the planet
Video: Protein Secondary and Tertiary Structures - Animation

For a complete list of videos, visit our video library