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

Author Question: Based on 12,500 responses from 29,000 questionnaires sent to all its members, a major medical ... (Read 56 times)

Chloeellawright

  • Hero Member
  • *****
  • Posts: 588
on: Jul 25, 2018
Based on 12,500 responses from 29,000 questionnaires sent to all its members, a major medical association estimated that the annual salary of its members was 92,000 per year. What sampling technique was used?
 
  A) stratified
  B) systematic
  C) simple random
  D) cluster
  E) convenience

Question 2

The lifetimes of lightbulbs of a particular type are normally distributed with a mean of 250 hours and a standard deviation of 6 hours. What percentage of the bulbs have lifetimes that lie within 2 standard deviations to either side of the mean?
 
  A) 99.74 B) 68.26 C) 95.44 D) 97.72


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

karlss

  • Sr. Member
  • ****
  • Posts: 321
Reply #1 on: Jul 25, 2018
Answer to Question 1

C

Answer to Question 2

C


Chloeellawright

  • Member
  • Posts: 588
Reply 2 on: Jul 25, 2018
YES! Correct, THANKS for helping me on my review

connor417

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Medical Terms and Corresponding Synonyms Cont Medical Terms and Corresponding Synonyms Cont
An example of a medical history sheet to list patient problems. An example of a medical history sheet to list patient problems.
Posterior view of major muscles. Posterior view of major muscles.
(B) Locations of major arteries. (B) Locations of major arteries.
Maternal age is the major risk factor for autosomal trisomies of all types. By age 42, about one in Maternal age is the major risk factor for autosomal trisomies of all types. By age 42, about one in
A Sociological Timeline of Major Figures in the Development of Sociological Theory, 1820–1960 A Sociological Timeline of Major Figures in the Development of Sociological Theory, 1820–1960
Video: Exercise and cardiac output & Definition of stroke volume

For a complete list of videos, visit our video library