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

Author Question: A cell phone company wants to determine if the use of text messaging is independent of age. The ... (Read 91 times)

SAVANNAHHOOPER23

  • Hero Member
  • *****
  • Posts: 542
A cell phone company wants to determine if the use of text messaging is independent of age. The following data has been collected from a random sample of customers.
 
  Regularly use text messaging Do not regularly use text messaging
  Under 21 82 38
  21-39 57 34
  40 and over 6 8
 
  Using this data, if we wish to test whether the preferred news source is independent of age using a 0.05 level of significance, the critical value is 5.9915.
   Indicate whether the statement is true or false

Question 2

When the correlation coefficient for the two variables was -0.23, it implies that the two variables are not correlated because the correlation coefficient cannot be negative.
 
  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

leahm14

  • Sr. Member
  • ****
  • Posts: 322
Answer to Question 1

TRUE

Answer to Question 2

FALSE




SAVANNAHHOOPER23

  • Member
  • Posts: 542
Reply 2 on: Jun 24, 2018
Excellent


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

 

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Did you know?

Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

For a complete list of videos, visit our video library