Homework Answers
1)
Answer:
Given that:
A normal distribution has a mean of m = 70 with s = 12. If one score is randomly selected from this distribution
Consider the score as random variable X which follows normal distribution and the mean and standard deviation of the distribution are 70 and 12
So,the probability that the score is more than 58 is calculated as
The probability that the score is more than 58 is obtained as 0.8413
The probability that the score is greater than 58 is 0.8413
Option (a) is correct answer
As per HOMEWORKLIB RULES we should solve only the first
question. So I have done it.
For the other question please post differently mentioning your
requirement
Add Answer to:
QUESTION 1 A normal distribution has a mean of m= 70 with s = 12. If...
QUESTION 4 A normal distribution has a mean of m= 100 with s = 20. If...
QUESTION 4 A normal distribution has a mean of m= 100 with s = 20. If one score is randomly selected from this distribution, what is the probability that the score will have a value between X = 90 and X = 110? ca. 0.6915 b.0.3085 CC 0.3830 d.0.1915 QUESTION 5 Which of the following is a requirement for a random sample? a. Every individual has an equal chance of being selected. cb. The probabilities cannot change during a series...
- What proportion of a normal distribution is located between each of the following Z-score boundaries?...
What proportion of a normal distribution is located between each of the following Z-score boundaries? a. z= -0.50 and z= +0.50 b. z=-0.90 and z= +0.90 c. z=-1.50 and z= 1.50 For a normal distribution with a mean of μ = 80 and a standard deviation of σ= 20, find the proportion of the population corresponding to each of the following. a. Scores greater than 85. b. Scores less than 100. c. Scores between 70 and 90. IQ test scores are standardized to produce a normal distribution with...
A normal distribution has a mean of u = 80 with o = 20. What score...
A normal distribution has a mean of u = 80 with o = 20. What score separates the highest 15% of the distribution from the rest of the scores? (Hint: First find the Z-score, then convert back to a raw score.) OX= 59.2 X = 100.8 X =95 X = 65
A normal distribution has a mean of 80 with a standard deviation of 20. What score...
A normal distribution has a mean of 80 with a standard deviation of 20. What score separates the highest 40% of the distribution from the rest of the scores? A) X= 54.4 B) X= 85 C) X= 75 D) X= 105.6
What proportion of the data from a normal distribution is within two standard deviations from the mean?
QUESTION 7 What proportion of the data from a normal distribution is within two standard deviations from the mean? A. 0.4772 B. 0.9544 C. 0.3413 D. 0.6826 QUESTION 8 The total area under the curve f(x) of any continuous random variable x is equal to one. True False QUESTION 9 Determine the value of zo which satisfies P(z > z0) = 0.7995.
A normal distribution of scores has a mean of 240 and a standard deviation of 40....
A normal distribution of scores has a mean of 240 and a standard deviation of 40. 1. What score separates the top 40% of the scores from the rest? 2. What score corresponds to the 90th percentile?
Use the normal distribution of SAT critical reading scores for which the mean is 514 and...
Use the normal distribution of SAT critical reading scores for which the mean is 514 and the standard deviation is 106. Assume the variable x is normally destributed. (a) What percent of the SAT verbal scores are less than 550? (b) If 1000 SAT verbal scores are randomly selected, about how many would you expect to be greater than 525? (a) Approximately% of the SAT verbal scores are less than 550 (Round to two decimal places as needed) SAT verbal...
A normal distribution has a mean of µ = 70 with σ = 10. If one...
A normal distribution has a mean of µ = 70 with σ = 10. If one score is randomly selected from this distribution, what is the probability that the score will be greater than X = 82? a.0.3849 b.0.7698 c.0.1151 d.0.8849 n a sample with M = 40 and s = 8, what is the z-score corresponding to X = 38? a.–0.25 b.+ 0.25 c.0.50 d.–0.50 In a population of N = 10 scores, the smallest score is X =...
Please explain in steps, Thank You!! 7. What z-score value separates the highest 10% of the...
Please explain in steps, Thank
You!!
7. What z-score value separates the highest 10% of the scores in a normal distribution from the lowest 90%? 8. Scores on the SAT form a normal distribution with a mean of μ-550 with σ 100. If the state college only accepts students who score in the top 65% on the SAT, what is the minimum score needed to be accepted? What does that z-score become if they change their criteria so that only...
Use the normal distribution of SAT critical reading scores for which the mean is 507 and the standard deviation is 122
Use the normal distribution of SAT critical reading scores for which the mean is 507 and the standard deviation is 122. Assume the variable x is normally distributed. (a) What percent of the SAT verbal scores are less than 550? (b) If 1000 SAT verbal scores are randomly selected, about how many would you expect to be greater than 525? (a) Approximately 63.78 % of the SAT verbal scores are less than 550. (b) You would expect that approximately _______ SAT verbal scores would...
QUESTION 4 A normal distribution has a mean of m= 100 with s = 20. If one score is randomly selected from this distribution, what is the probability that the score will have a value between X = 90 and X = 110? ca. 0.6915 b.0.3085 CC 0.3830 d.0.1915 QUESTION 5 Which of the following is a requirement for a random sample? a. Every individual has an equal chance of being selected. cb. The probabilities cannot change during a series...
A normal distribution has a mean of u = 80 with o = 20. What score separates the highest 15% of the distribution from the rest of the scores? (Hint: First find the Z-score, then convert back to a raw score.) OX= 59.2 X = 100.8 X =95 X = 65
Use the normal distribution of SAT critical reading scores for which the mean is 514 and the standard deviation is 106. Assume the variable x is normally destributed. (a) What percent of the SAT verbal scores are less than 550? (b) If 1000 SAT verbal scores are randomly selected, about how many would you expect to be greater than 525? (a) Approximately% of the SAT verbal scores are less than 550 (Round to two decimal places as needed) SAT verbal...
Please explain in steps, Thank
You!!
7. What z-score value separates the highest 10% of the scores in a normal distribution from the lowest 90%? 8. Scores on the SAT form a normal distribution with a mean of μ-550 with σ 100. If the state college only accepts students who score in the top 65% on the SAT, what is the minimum score needed to be accepted? What does that z-score become if they change their criteria so that only...
Most questions answered within 3 hours.
-
Consider the reaction, C3 H8 + O2 --> CO2 + H2O. How many
moles of O2...
asked 58 minutes ago -
You and your opponent both roll a fair die. If you both roll the
same number,...
asked 1 hour ago -
In a study of the accuracy of fast food drive-through orders,
Restaurant A had 257 accurate...
asked 1 hour ago -
Identify and describe in detail the four categories of
institutions that could be included in a...
asked 1 hour ago -
In python
class Customer:
def __init__(self, customer_id, last_name, first_name, phone_number, address):
self._customer_id = int(customer_id)
self._last_name =...
asked 1 hour ago -
What is an example of a limitation in implementing a new
ERP system and how it...
asked 1 hour ago -
In a section of 9.7cm of an artery with a radius of 2.6mm there
is a...
asked 1 hour ago -
the two carboxylic acid groups of aspartic acid have different
acidities with pKa values of 2.1...
asked 1 hour ago -
Would CuCO3 aqueous salt combined with calcium chloride
form a solid precipitate? If so, what would...
asked 1 hour ago -
How do ECM Solutions assist in embedding a culture of continuous
improvement in an organization? (Project...
asked 1 hour ago -
Directions
These directions introduce the idea of Essential Questions.
Since this may be a new concept...
asked 1 hour ago -
1.b. Fiscal policy is said to suffer from ‘crowding out’.
Explain what this means and why...
asked 2 hours ago