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 2770 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?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

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?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Acromegaly in one individual from a pair of identical twins. Acromegaly in one individual from a pair of identical twins.
Pills Pills
Funeral Rituals and Practices among U.S. Cultural Groups Funeral Rituals and Practices among U.S. Cultural Groups
The Distribution of Dominant and Minority Groups The Distribution of Dominant and Minority Groups
How to divide any two or more radicals How to divide any two or more radicals
The gradient of the B allele of the ABO blood groups from East to West is due to waves of migration The gradient of the B allele of the ABO blood groups from East to West is due to waves of migration
Video: Embryonic development - Weeks 5 to 8

For a complete list of videos, visit our video library