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 44 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?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

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

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Median Annual Earnings of Full-Time Workers, by Gender, 1960–2010 Median Annual Earnings of Full-Time Workers, by Gender, 1960–2010
Assume z is a standard normal random variable. What is the value of z if the area to the right ... Assume z is a standard normal random variable. What is the value of z if the area to the right ...
The number of phenotypic classes in the F2 generation increases as the number of genes controlling t The number of phenotypic classes in the F2 generation increases as the number of genes controlling t
The effect of disruptive selection on bristle number in Drosophila The effect of disruptive selection on bristle number in Drosophila
Number line for rounding Number line for rounding
Meiosis Halves the Chromosome Number Meiosis Halves the Chromosome Number
Video: Polymerase chain reaction PCR - Animation

For a complete list of videos, visit our video library