Author Question: When the data have the properties of interval data and the multiplication or division of two values ... (Read 63 times)

xclash

  • Hero Member
  • *****
  • Posts: 681
When the data have the properties of interval data and the multiplication or division of two values is meaningful, the variable has which scale of measurement?
 a. nominal
  b. ordinal
  c. interval
  d. ratio

Question 2

The average starting salary of this year's graduates of a large university (LU) is 20,000 with a standard deviation of 8,000 . Furthermore, it is known that the starting salaries are normally distributed.
 a. What is the probability that a randomly selected LU graduate will have a starting salary of at least 30,400?
  b. Individuals with starting salaries of less than 15,600 receive a low income tax break. What percentage of the graduates will receive the tax break?
  c. What are the minimum and the maximum starting salaries of the middle 95 of the LU graduates?
  d. If 189 of the recent graduates have salaries of at least 32,240, how many students graduated this year from this university?



kjohnson

  • Sr. Member
  • ****
  • Posts: 330
Answer to Question 1

d

Answer to Question 2

a. .0968
b. 29.12
c. 4,320, 35,680
d. 3,000



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

For a complete list of videos, visit our video library