This topic contains a solution. Click here to go to the answer

Author Question: In computing descriptive statistics for grouped data, the _____ are used to approximate the data ... (Read 225 times)

bucstennis@aim.com

  • Hero Member
  • *****
  • Posts: 532
In computing descriptive statistics for grouped data, the _____ are used to approximate the data values in each class.
 a. class lower limits
  b. class upper limits
  c. class midpoints
  d. class ranges

Question 2

There are 500 employees in a firm, 45 are female. A sample of 60 employees is selected randomly.
 a. Determine the standard error of the proportion.
  b. What is the probability that the sample proportion (proportion of females) is between 0.40 and 0.55?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Rilsmarie951

  • Sr. Member
  • ****
  • Posts: 316
Answer to Question 1

c

Answer to Question 2

a. 0.0603
b. 0.7482





 

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

For a complete list of videos, visit our video library