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

Author Question: Drake Marketing and Promotions has randomly surveyed 200 men who watch professional sports. The men ... (Read 124 times)

jc611

  • Hero Member
  • *****
  • Posts: 552
on: Jun 24, 2018
Drake Marketing and Promotions has randomly surveyed 200 men who watch professional sports. The men were separated according to their educational level (college degree or not) and whether they preferred the NBA or the National Football League (NFL).
 
  The results of the survey are shown:Sports Preference College Degree No College DegreeNBA 40 55NFL 10 95What is the probability that a randomly selected survey participant prefers the NFL?A) 0.5250
  B) 0.2000
  C) 0.6050
  D) 0.5880

Question 2

In estimating a population mean, under what conditions would the t-distribution be used?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bigcheese9

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jun 24, 2018
Answer to Question 1

A

Answer to Question 2

The t-distribution is used to obtain the critical value for a confidence interval estimate for the population mean when the value for the population standard deviation is unknown or the sample size is reasonably small. Technically, the t-distribution can be used when the standard deviation is not known, but since the t-distribution and the z-distribution converge for large samples, it generally does not matter in cases where the sample size is large. It should be noted that the t-distribution is based on the assumption that the population is normally distributed. However, the t-distribution is usable as long as the population is reasonably symmetric.


jc611

  • Member
  • Posts: 552
Reply 2 on: Jun 24, 2018
Great answer, keep it coming :)

matt95

  • Member
  • Posts: 317
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Piebald drake Piebald drake
International Television Viewing Rates in Childhood In most developed countries, children watch TV International Television Viewing Rates in Childhood In most developed countries, children watch TV
A health care professional taking a radial pulse and common pulse points. A health care professional taking a radial pulse and common pulse points.
Sports, fitness, and recreation setting. Sports, fitness, and recreation setting.
Marketing: An Introduction, 7th Edition Marketing: An Introduction, 7th Edition
Video: Evolutionary tree of life Animation

For a complete list of videos, visit our video library