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

Author Question: A random sample of 16 statistics examinations from a large population was taken. The average score ... (Read 110 times)

BRWH

  • Hero Member
  • *****
  • Posts: 553
on: Jun 24, 2018
A random sample of 16 statistics examinations from a large population was taken. The average score in the sample was 78.6 with a variance of 64 . We are interested in determining whether the average grade of the population is significantly more than 75 . Assume the distribution of the population of grades is normal. At 95 confidence, it can be concluded that the average grade of the population
 a. is not significantly greater than 75
  b. is significantly greater than 75
  c. is not significantly greater than 78.6
  d. is significantly greater than 78.6

Question 2

A random sample of 16 statistics examinations from a large population was taken. The average score in the sample was 78.6 with a variance of 64 . We are interested in determining whether the average grade of the population is significantly more than 75 . Assume the distribution of the population of grades is normal. The p-value is between
 a. .005 to .01
  b. .01 to .025
  c. .025 to .05
  d. .05 to 0.1


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Jevvish

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Jun 24, 2018
Answer to Question 1

B

Answer to Question 2

C


BRWH

  • Member
  • Posts: 553
Reply 2 on: Jun 24, 2018
Thanks for the timely response, appreciate it

meow1234

  • Member
  • Posts: 333
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Did you know?

Excessive alcohol use costs the country approximately $235 billion every year.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Over nearly 30 years, humans removed many polar bears for a variety of reasons, from a population in Over nearly 30 years, humans removed many polar bears for a variety of reasons, from a population in
Functional MRI Scans These scans of human brains show localized average increases in neural activity Functional MRI Scans These scans of human brains show localized average increases in neural activity
World Population Growth World Population Growth
Women status and the population growth rates Women status and the population growth rates
World Population, 10,000 B.C. to A.D. 2010 World Population, 10,000 B.C. to A.D. 2010
Statistics Question: A swim team Statistics Question: A swim team
Video: Glomerular filtrate rate: pressures that affect GFR, NFP & GFR and blood composition

For a complete list of videos, visit our video library