Log in
Statistics
2
answers
0
watching
541
views

GRE scores, Part II: Assume that scores on the verbal portion of the GRE (Graduate Record Exam) follow the normal distribution with a mean score 151 and standard deviation of 7 points, while the quantitative portion of the exam has scores following the normal distribution with mean 153 and standard deviation 7.67. Use this information to answer the following:

(a) Find the score of a student who scored in the 80th percentile on the Quantitative Reasoning section of the exam. ..............(Please round to two decimal places)

 

Watch
2
answers
0
watching
541
views

For unlimited access to Homework Help, a Homework+ subscription is required.

Unlock all answers

Get 1 free homework help answer.
Already have an account? Log in
Share
Priyanshu Patel
Priyanshu PatelLv10
6 Mar 2021
Already have an account? Log in
Share

Related textbook solutions

Introductory Statistics
OER Edition, 2013
Openstax
ISBN: 9781938168208

Related questions

Test scores on a national exam follow a normal distribution
with mean 65 and standard deviation 15. Students that
score in the bottom 25
th
percentile on the exam will be
made to tutoring classes. Students at or below what grade
will be required to take tutoring classes

Scores on an exam follow an approximately normal distribution with a mean of 76.4 and a standard deviation of 6.1. What is the minimum score you would need to be in the top 7%?

Module 4 Minitab Assignment

Instructions:

Below you will find questions. Please use the provided data to complete the tasks and to answer the questions.

For the standard normal distribution, Z, find the proportion (percentage) of observations that satisfies each of the following statements. In each case, use a graph of the Normal curve and shade the area under the curve that is the answer to the question. 


Values of z larger than 2.33.

Between z = −1.50 and z = 1.18. 

Values of z less than 1.19. 

A set of final examination grades in an introductory statistics course was found to be normally distributed with a mean of 77 and a standard deviation of 8. For each of the following produce a normal distribution plot showing the appropriate shaded area.

What percentage of students scored lower than 70 on this exam? 

What percentage of students scored between 81 and 89? 

What percentage of students scored higher than 90 on this exam? 

What is the 80th percentile of scores? 

What is the 95th percentile of scores?

Weekly leaderboard

Home
Homework Help 3,900,000
Statistics 10,000
Start filling in the gaps now
Log in