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

Author Question: 400 patients suffering from chronic back pain were randomly assigned to one of two groups. Over a ... (Read 70 times)

deesands

  • Hero Member
  • *****
  • Posts: 514
on: Jul 25, 2018
400 patients suffering from chronic back pain were randomly assigned to one of two groups. Over a four-month period, the first group received acupuncture treatments and the second group received a placebo.
 
  Patients who received acupuncture treatments improved more than those who received the placebo.
  A) Designed experiment B) Observational study

Question 2

A researcher wants to perform a hypothesis test to determine whether the mean length of marriages in California differs from the mean length of marriages in Texas. Identify the two populations for the proposed hypothesis test.
 
  A) Adults living in California and adults living in Texas
  B) Marriages in California and marriages in Texas
  C) Lengths of California marriages and lengths of Texas marriages
  D) Married men and married women


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Pariscourtney

  • Sr. Member
  • ****
  • Posts: 352
Reply #1 on: Jul 25, 2018
Answer to Question 1

A

Answer to Question 2

B


deesands

  • Member
  • Posts: 514
Reply 2 on: Jul 25, 2018
YES! Correct, THANKS for helping me on my review

cdmart10

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Nursing interventions for patients with a fever Nursing interventions for patients with a fever
Player - Baby Come Back Player - Baby Come Back
Redrape the back, face the head of the table, and apply passive touch as finishing technique. Gently ... Redrape the back, face the head of the table, and apply passive touch as finishing technique. Gently ...
Good body mechanics when facing the table directly. A. Head and back in alignment. B. Legs and feet ... Good body mechanics when facing the table directly. A. Head and back in alignment. B. Legs and feet ...
Reconnect the lower and upper back with horizontal stroking from lower back to shoulders. Keep flat, ... Reconnect the lower and upper back with horizontal stroking from lower back to shoulders. Keep flat, ...
Guidelines for Field Triage of Injured Patients, Centers for Disease Control, 2011 Guidelines for Field Triage of Injured Patients, Centers for Disease Control, 2011
Video: Parathyroid hormone (bone resorption) & Calcitonin (bone deposition)

For a complete list of videos, visit our video library