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

Author Question: A survey of business students who have taken the Graduate Management Admission Test (GMAT) indicated ... (Read 120 times)

MGLQZ

  • Hero Member
  • *****
  • Posts: 579
on: Jun 24, 2018
A survey of business students who have taken the Graduate Management Admission Test (GMAT) indicated that students who have spent at least five hours studying GMAT review guides have a probability of .85 of scoring above 400 . Students who do not spend at least five hours reviewing have a probability of .65 of scoring above 400 . It has been determined that 70 of the business students spent at least five hours reviewing for the test.
 a. Find the probability of scoring above 400.
  b. Find the probability that given a student scored above 400, he/she spent at least five hours reviewing for the test.

Question 2

With nonprobabilistic sampling
 a. it is possible to make estimates about the precision of the population parameters.
  b. it is not possible to make statements about the precision of estimates made concerning the population parameters.
  c. estimates can be made with precision if the sample is larger than 30.
  d. none of these alternatives is correct.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

diana chang

  • Sr. Member
  • ****
  • Posts: 288
Reply #1 on: Jun 24, 2018
Answer to Question 1

a. .79
b. .7532

Answer to Question 2

b


MGLQZ

  • Member
  • Posts: 579
Reply 2 on: Jun 24, 2018
Excellent

frankwu0507

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

Your heart beats over 36 million times a year.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Assisting with a Pelvic Examination and Pap Test Assisting with a Pelvic Examination and Pap Test
Cards Used in a Formal Test of Problem Solving Cards Used in a Formal Test of Problem Solving
Drinking Alcohol use by college students Drinking Alcohol use by college students
Weber test Weber test
Schamroth test A. Healthy nail B. Clubbing Schamroth test A. Healthy nail B. Clubbing
Business Math, 10th Edition Business Math, 10th Edition
Video: A Human Karyotype Preparation Animation

For a complete list of videos, visit our video library