Author Question: DEA is used to measure the relative efficiency of two (or more) units in different industries, such ... (Read 103 times)

robinn137

  • Hero Member
  • *****
  • Posts: 544
DEA is used to measure the relative efficiency of two (or more) units in different industries, such as a bank and a school.
  Indicate whether the statement is true or false

Question 2

The average gasoline price of one of the major oil companies has been 3.00 per gallon. Because of shortages in production of crude oil, it is believed that there has been a significant INCREASE in the average price. In order to test this belief, we randomly selected a sample of 36 of the company's gas stations and determined that the average price for the stations in the sample was 3.06 . Assume that the standard deviation of the population () is 0.09.
 a. State the null and alternative hypotheses.
  b. Test the claim at  = .05.
  c. What is the p-value associated with the above sample results



AISCAMPING

  • Sr. Member
  • ****
  • Posts: 347
Answer to Question 1

F

Answer to Question 2

a. H0:   3

Ha:  > 3
b. z = 4; therefore, reject H0 . There is sufficient evidence at  = .05 to conclude that there has been an increase in the average price.
c. less than .001



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

For a complete list of videos, visit our video library