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

Author Question: A school district administrator sent a survey to all teachers in the district. Only 30 of the ... (Read 315 times)

panfilo

  • Hero Member
  • *****
  • Posts: 572
on: Jul 24, 2018
A school district administrator sent a survey to all teachers in the district. Only 30 of the teachers responded to the survey. Which of the following is true?
 
  I. The people that did not responded are likely to be similar to those that did so he should use them as the sample.
  II. This survey design suffered from non-response bias.
  III. Because he sent the survey to everyone, this is a census and the results can be applied to the whole population.
  A) II only
  B) I, II, and III
  C) I only
  D) I and II only
  E) II and III only

Question 2

Which is true about randomized experiments?
 
  I. Randomization reduces the effects of confounding variables.
  II. Random assignment of treatments allows results to be generalized to the larger population.
  III. Blocking can be used to reduce the within-treatment variability.
  A) III only B) I, II, and III C) I only D) I and III E) II only
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 a Subject Expert

Kjones0604

  • Sr. Member
  • ****
  • Posts: 327
Reply #1 on: Jul 24, 2018
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 25% of students answer this correctly


panfilo

  • Hero Member
  • *****
  • Posts: 572
Reply #2 on: Jul 24, 2018
Thank you!


Kjones0604

  • Sr. Member
  • ****
  • Posts: 327
Reply #3 on: Jul 24, 2018
Always glad to help...


« previous next »
 

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

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?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

A young Lipizzan at the Spanish Riding School in training equipment, wearing saddle, bridle and long A young Lipizzan at the Spanish Riding School in training equipment, wearing saddle, bridle and long
The general survey includes assessing every patient for signs of distress. The general survey includes assessing every patient for signs of distress.
school is never ending school is never ending
Nursing school Nursing school
In 1879 an army officer founded the Carlisle School in Pennsylvania to “civilize” young Indians. The In 1879 an army officer founded the Carlisle School in Pennsylvania to “civilize” young Indians. The
Foundations of American Education: Becoming Effective Teachers in Challenging Times Foundations of American Education: Becoming Effective Teachers in Challenging Times
Video: What are Taste Receptors? How Does it Work? Animation

For a complete list of videos, visit our video library