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 42 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
Wow, this really help

tuate

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Menstrual cycle summary based on a 28-day (average) menstrual cycle. Menstrual cycle summary based on a 28-day (average) menstrual cycle.
Statistics Center (07/2016) Statistics Center (07/2016)
This battery shows a large “1000” on the front panel but this is the CA rating and not the ... This battery shows a large “1000” on the front panel but this is the CA rating and not the ...
Sample composition of maternal and paternal HLA haplotypes. Sample composition of maternal and paternal HLA haplotypes.
Sample Inclusion for Various s Sample Inclusion for Various s
In 2000, the average charge of tax preparation was 95 . Assuming a normal distribution and a ... In 2000, the average charge of tax preparation was 95 . Assuming a normal distribution and a ...
Video: Blood Pressure Measurement

For a complete list of videos, visit our video library