Question

The test scores for the analytical writing section of the Graduate Record Examination can be approximated by a normal distribution with a mean of 155.69 and a standard deviation of 5.05.

a) What is the maximum score that can be in the bottom 11.4% of Scores?

b) Between what two values does the middle 74% lie?

c) What is the minimum score that can be in the top 4.5%

Answer #1

Given that,

mean = = 155.69

standard deviation = = 5.05

(a)

P(Z < -1.206) = 0.0.114

z = -1.206

Using z-score formula,

x = z * +

x = -1.206 * 5.05 + 155.69 = 149.60

score = 149.60

(b)

The middle 74% has the z values : -1.13 . +1.13

Using z-score formula,

x = z * +

x = -1.13 * 5.05 + 155.69 = 149.98

x = 1.13 * 5.05 + 155.69 = 161.40

Two values are : 149.98 and 161.40

(c)

P(Z < 1.695) = 0.955

z = 1.695

Using z-score formula,

x = z * +

x = 1.695 * 5.05 + 155.69 = 164.25

score = 164.25

The Graduate Record Examination (GRE) is a test require for
admission to many U.S graduate schools. Students' scored on the
quantitative portion of the GRE follow a normal distribution with
mean 150 and standard deviation 8.8. A graduate school requires
that sudents score above 160 to be admitted
1. Determine the combined GRE scores that make up the middle 95%
of all scores?
Use the standard normal distribution to determine the
following:
2.) 68% of the scores lie between what...

The Graduate Record Examination (GRE) is a standardized test
commonly taken by graduate school applicants in the United States.
The total score is comprised of three compo- nents: Quantitative
Reasoning, Verbal Reasoning, and Analytical Writing. The first two
components are scored from 130 - 170. The mean score for Verbal
Reasoning section for all test takers was 151 with a standard
deviation of 7, and the mean score for the Quantitative Reasoning
was 153 with a standard deviation of 7.67....

PLEASE TYPE DO NOT WRITE THANK YOU!
The Graduate Record Examination (GRE) is a test required for
admission to many US graduate schools. Students’ scores on the
quantitative portion of the GRE follow a normal distribution with a
mean of 150 and a standard deviation of 8.8. In addition to other
qualifications, a score of at least 152 is required for admission
to a particular graduate school.
a )Determine the 80thpercentile of GRE scores.
b) Determine the GRE scores that...

1. (6 pts) The Graduate Record Examination
(GRE) is a test required for admission to many U.S. graduate
schools. Students' scores on the quantitative portion of the GRE
follow a normal distribution with mean 150 and standard deviation
8.8. In addition to other qualifications, a score of at least 160
is required for admission to a particular graduate school.
What proportion of combined scores can be expected to be over
160?
What proportion of combined GRE scores can be expected...

In an examination the probability distribution of scores
(X) can be approximated by normal distribution with mean
61 and standard deviation 9.4.
1. Suppose one has to obtain at least 55 to pass the exam. What
is the probability that a randomly selected student passed the
exam? [Answer to 3 decimal places]
2. If two students are selected randomly what is the chance that
both the students failed? [Answer to 3 decimal places]
3. If only top 8% students are...

Scores on the GRE. A college senior who took
the Graduate Record Examination exam scored 630 on the Verbal
Reasoning section and 670 on the Quantitative Reasoning section.
The mean score for Verbal Reasoning section was 461 with a standard
deviation of 107, and the mean score for the Quantitative Reasoning
was 425 with a standard deviation of 154. Suppose that both
distributions are nearly normal. Round calculated answers to 4
decimal places unless directed otherwise.
1.Write down the short-hand...

Scores on the GRE. A college senior who took
the Graduate Record Examination exam scored 580 on the Verbal
Reasoning section and 730 on the Quantitative Reasoning section.
The mean score for Verbal Reasoning section was 456 with a standard
deviation of 132, and the mean score for the Quantitative Reasoning
was 443 with a standard deviation of 153. Suppose that both
distributions are nearly normal. Round calculated answers to 4
decimal places unless directed otherwise.
1.Write down the short-hand...

Scores on the GRE. A college senior who took
the Graduate Record Examination exam scored 580 on the Verbal
Reasoning section and 730 on the Quantitative Reasoning section.
The mean score for Verbal Reasoning section was 456 with a standard
deviation of 132, and the mean score for the Quantitative Reasoning
was 443 with a standard deviation of 153. Suppose that both
distributions are nearly normal. Round calculated answers to 4
decimal places unless directed otherwise.
5. What is her...

Amanda took the Graduate Record Examination (GRE), and scored
160 in verbal reasoning and 157 in quantitative reasoning. The mean
score for verbal reasoning was 151 with a standard deviation of 7,
compared with mean µ = 153 and σ = 7.67 for quantitative reasoning.
Assume that both distributions are normal.
(a) What were Amanda’s Z-scores on these exam sections? Mark
these scores on a standard normal distribution curve.
(b) Which section did she do better on, relative to other...

In an examination the probability distribution of scores
(X) can be approximated by normal distribution with mean
63.2 and standard deviation 7.6.
*Please explain how you got your answers.
1) Suppose one has to obtain at least 55 to pass the
exam. What is the probability that a randomly selected student
passed the exam? [Answer to 3 decimal places]
Tries 0/5
2) If two students are selected randomly what is the
chance that both the students failed? [Answer to 3...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 3 minutes ago

asked 4 minutes ago

asked 14 minutes ago

asked 34 minutes ago

asked 35 minutes ago

asked 35 minutes ago

asked 48 minutes ago

asked 48 minutes ago

asked 55 minutes ago

asked 56 minutes ago

asked 57 minutes ago

asked 58 minutes ago