« previous next »

Author Question: The interquartile range is used as a measure of variability to overcome what difficulty of the ... (Read 97 times)

soccerdreamer_17

  • Hero Member
  • *****
  • Posts: 552
on: Jun 24, 2018
The interquartile range is used as a measure of variability to overcome what difficulty of the range?
 a. The sum of the range variances is zero.
  b. The range is difficult to compute.
  c. The range is influenced too much by extreme values.
  d. The range is negative.

Question 2

A random sample of 144 observations has a mean of 20, a median of 21, and a mode of 22 . The population standard deviation is known to equal 4.8 . The 95.44 confidence interval for the population mean is
 a. 15.2 to 24.8.
   b. 19.20 to 20.80.
   c. 19.216 to 20.784.
   d. 21.2 to 22.8.


vickyvicksss

  • Sr. Member
  • ****
  • Posts: 351
Reply #1 on: Jun 24, 2018
Answer to Question 1

c

Answer to Question 2

b


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

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.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Blood glucose measurement. A postprandial test may be self-administered. (a) A lance pierces the ski Blood glucose measurement. A postprandial test may be self-administered. (a) A lance pierces the ski
Signs and symptoms of breathing difficulty. Signs and symptoms of breathing difficulty.
How to find the domain and range of natural logarithmic functions (Part 1) How to find the domain and range of natural logarithmic functions (Part 1)
The Therapeutic Range of a Drug The Therapeutic Range of a Drug
Range for Functions Range for Functions
Skin color is a polygenic trait controlled by three or four genes, producing a wide range of phenoty Skin color is a polygenic trait controlled by three or four genes, producing a wide range of phenoty
Video: Simple and Double Sugar

For a complete list of videos, visit our video library