This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A cell phone company wants to determine if the use of text messaging is independent of age. The ... (Read 85 times)

SAVANNAHHOOPER23

  • Hero Member
  • *****
  • Posts: 542
on: Jun 24, 2018
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
Reply #1 on: Jun 24, 2018
Answer to Question 1

TRUE

Answer to Question 2

FALSE


SAVANNAHHOOPER23

  • Member
  • Posts: 542
Reply 2 on: Jun 24, 2018
Wow, this really help

atrochim

  • Member
  • Posts: 331
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Structure of cellulose, the main macromolecule of the primary cell wall Structure of cellulose, the main macromolecule of the primary cell wall
Response of a yeast cell to glucose Response of a yeast cell to glucose
animal cell animal cell
Major parts of the cell and the structures located inside the cell. Major parts of the cell and the structures located inside the cell.
Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ... Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ...
Dolly the sheep was the first mammal cloned by nuclear transfer from a somatic cell Dolly the sheep was the first mammal cloned by nuclear transfer from a somatic cell
Video: Homologous chromosomes during prophase I - Animation

For a complete list of videos, visit our video library