« previous next »

Author Question: For a two-tail test, the p-value is the probability of obtaining a value for the test statistic as ... (Read 140 times)

daltonest1984

  • Hero Member
  • *****
  • Posts: 536
on: Jun 24, 2018
For a two-tail test, the p-value is the probability of obtaining a value for the test statistic as
 a. likely as that provided by the sample
  b. unlikely as that provided by the sample
  c. likely as that provided by the population
  d. unlikely as that provided by the population

Question 2

A random sample of 100 credit sales in a department store showed an average sale of 120.00 . From past data, it is known that the standard deviation of the population is 40.00.
 a. Determine the standard error of the mean.
  b. With a 0.95 probability, determine the margin of error.
  c. What is the 95 confidence interval of the population mean?


lauravaras

  • Sr. Member
  • ****
  • Posts: 347
Reply #1 on: Jun 24, 2018
Answer to Question 1

B

Answer to Question 2

a. 4
b. 7.84
c. 112.16 to 127.84


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

National Results of the Scholastic Assessment Test (SAT) National Results of the Scholastic Assessment Test (SAT)
Using a gauge that measures vacuum in units of inches of water to test the vacuum at the dipstick ... Using a gauge that measures vacuum in units of inches of water to test the vacuum at the dipstick ...
Prostate-specific antigen test. Prostate-specific antigen test.
Compression Test: The Hose Trick Compression Test: The Hose Trick
Wet Compression Test Wet Compression Test
Pedigree Probability Pedigree Probability
Video: Carpal Tunnel Syndrome

For a complete list of videos, visit our video library