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

Author Question: A business with 5 copy machines keeps track of how many copy machines need service on a given day. ... (Read 167 times)

jc611

  • Hero Member
  • *****
  • Posts: 552
A business with 5 copy machines keeps track of how many copy machines need service on a given day. It believes this is binomially distributed with a probability of p = 0.2 of each machine needing service on any given day.
 
  It has collected the following based on a random sample of 100 days.
 
  X Frequency
  0 28
  1 38
  2 22
  3 7
  4 or 5 5
  Total 100
 
  Given this information, assuming that all expected values are sufficiently large to use the classes as shown above, the critical value for testing the hypothesis will be based on 5 degrees of freedom.
   Indicate whether the statement is true or false

Question 2

The Conrad Real Estate Company recently conducted a statistical test to determine whether the number of days that homes are on the market prior to selling is normally distributed with a mean equal to 50 days and a standard deviation equal to 10 days.
 
  The sample of 200 homes was divided into 8 groups to form a grouped data frequency distribution. The degrees of freedom for the test will be 7. Indicate whether the statement is true or false



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

mk6555

  • Sr. Member
  • ****
  • Posts: 310
Answer to Question 1

FALSE

Answer to Question 2

TRUE




jc611

  • Member
  • Posts: 552
Reply 2 on: Jun 24, 2018
Excellent


ultraflyy23

  • Member
  • Posts: 312
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

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?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

For a complete list of videos, visit our video library