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 2586 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?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

A comparison of monophyletic, paraphyletic, and polyphyletic taxonomic groups. A comparison of monophyletic, paraphyletic, and polyphyletic taxonomic groups.
Biochem funtional groups Biochem funtional groups
The Distribution of Dominant and Minority Groups The Distribution of Dominant and Minority Groups
As with other groups, there is no such thing as the Latino family. Some Latino families speak little ... As with other groups, there is no such thing as the Latino family. Some Latino families speak little ...
Religious Groups: From Hostility to Acceptance Religious Groups: From Hostility to Acceptance
10 side effect of birth control pills 10 side effect of birth control pills
Video: Heart sounds

For a complete list of videos, visit our video library