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

Author Question: The _____ denotes the number of standard deviations xi is from the mean . a. variance b. median ... (Read 54 times)

stock

  • Hero Member
  • *****
  • Posts: 573
on: Jun 24, 2018
The _____ denotes the number of standard deviations xi is from the mean .
 a. variance
  b. median
  c. z-score
  d. normal deviation

Question 2

In order to estimate the average time spent per student on the computer terminals at a local university, data were collected for a sample of 81 business students over a one-week period. Assume the population standard deviation is 1.8 hours. With a .95 probability, the margin of error is approximately
 a. .39.
   b. 1.96.
   c. .20.
   d. 1.64.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

katieost

  • Sr. Member
  • ****
  • Posts: 358
Reply #1 on: Jun 24, 2018
Answer to Question 1

c

Answer to Question 2

a


stock

  • Hero Member
  • *****
  • Posts: 573
Reply #2 on: Jun 24, 2018
Thank you


katieost

  • Sr. Member
  • ****
  • Posts: 358
Reply #3 on: Jun 24, 2018
No problemo


« previous next »
 

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

(a) Zombies are a common theme in movies. However, (b) the number of zombie movies released each yea (a) Zombies are a common theme in movies. However, (b) the number of zombie movies released each yea
Standard Schnauzer Standard Schnauzer
Number of positive, negative, and neutral images recalled by younger, middle-age, and older adults. ... Number of positive, negative, and neutral images recalled by younger, middle-age, and older adults. ...
Annual Mean Number of Days with Thunder Annual Mean Number of Days with Thunder
The Haploid Number of Chromosomes for a Variety of Organisms The Haploid Number of Chromosomes for a Variety of Organisms
Meiosis Halves the Chromosome Number Meiosis Halves the Chromosome Number
Video: Febrile Seizure

For a complete list of videos, visit our video library