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

Author Question: We randomly divide 200 volunteers with headaches into two groups who take identical-looking pills. ... (Read 2801 times)

mia

  • Hero Member
  • *****
  • Posts: 564
on: Aug 31, 2019
We randomly divide 200 volunteers with headaches into two groups who take identical-looking pills. One group gets a homeopathic remedy and the other a placebo. After 20 minutes we ask them to rate their headache pain as "no change", "somewhat better", "much better", or "gone". What is the appropriate test?
◦ 2-proportion z-test
◦ χ2 test of homogeneity
◦ 2-sample t-test
◦ matched pairs t-test
◦ χ2 test of independence
Stats: Modeling the World ¦ Bock, Velleman, De Veaux ¦ 4th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by mia on Aug 31, 2019

popopong

  • Sr. Member
  • ****
  • Posts: 307
Reply #1 on: Aug 31, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 39% of students answer this correctly


mia

  • Hero Member
  • *****
  • Posts: 564
Reply #2 on: Aug 31, 2019
TY


popopong

  • Sr. Member
  • ****
  • Posts: 307
Reply #3 on: Aug 31, 2019
You're welcome


RIVER RAWLE

  • Newbie
  • *
  • Posts: 1
Reply #4 on: Apr 1, 2020
thank you


Jessica Gilbert

  • Newbie
  • *
  • Posts: 1
Reply #5 on: Jan 13, 2021
Thank you!


Amy Cho

  • Newbie
  • *
  • Posts: 1
Reply #6 on: Mar 26, 2021
Thank you


Abrahim Baluch

  • Newbie
  • *
  • Posts: 1
Reply #7 on: Apr 9, 2021
Thank you


« previous next »
 

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

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?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

A plot of trophic diversity across the major groups of organisms shows highest trophic diversity amo A plot of trophic diversity across the major groups of organisms shows highest trophic diversity amo
Three Tasmanian devils feeding. Eating is a social event for the Tasmanian devil, and groups of 2 to Three Tasmanian devils feeding. Eating is a social event for the Tasmanian devil, and groups of 2 to
The Distribution of Dominant and Minority Groups The Distribution of Dominant and Minority Groups
Two wells are filled with related or partially identical antigens. The well on the left contains an ... Two wells are filled with related or partially identical antigens. The well on the left contains an ...
Functional Groups of Carbon Functional Groups of Carbon
Functional Groups of Carbon Functional Groups of Carbon
Video: Digestive System Animation

For a complete list of videos, visit our video library