Question

In: Statistics and Probability

Many states assess the skills of their students in various grades. One program that is available...

Many states assess the skills of their students in various grades. One program that is available for this purpose is the National Assessment of Educational Progress (NAEP). We assumed that the NAEP U.S. history scores for twelfth-grade students are approximately Normal with the reported mean and standard deviation, N(295 , 33 ). For the twelfth-grade U.S. history scores, the following percentiles are reported:

Percentile Score
10% 252
25% 282
50% 298
75% 274
90% 271

Let's check that assumption. In addition to means and standard deviations, you can find selected percentiles for the NAEP assessments.

Use these percentiles to assess whether or not the NAEP U.S. history scores for twelfth-grade students are approximately Normal.

Use software to compute ( ±±0.01) the scores with N(295 , 33 ):

Percentile Score Score withN(295 ,33 )
10% 252
25% 282
50% 298
75% 274
90% 271

Solutions

Expert Solution

A detailed solution is given .... If you are satisfied with my explanations please Thumbs up... Thanks inadvance for the support dear....

orchestra answered 1 year ago
Next > < Previous

Related Solutions

Consider three students taking an examination. Their respective probabilities of obtaining the different available grades are...
Consider three students taking an examination. Their respective probabilities of obtaining the different available grades are shown in Table 1. (a) What is the probability that each will obtain a grade of A? (b) If two students were to receive an A, what is the probability that Jim would be among them? Table 1. Probabilities of Individual Student Exam Grades* Student    Grade                     A   B     C     D      F Terry         0.5 0.3 0.1 0.06 0.04 Jim           0.4 0.4 0.1 0.07 0.03...
The table below contains various grades for three students obtained over the course of the year....
The table below contains various grades for three students obtained over the course of the year. Assuming that all grades are equally weighted, generate a new table that displays the name of the student, their average grade, and the number of grades they had in their record. import numpy as np np.random.seed(seed=0) Students = ['Samir','Mark','Zoe','Andrew','Rupert'] Grades_Data = [] for i in range(100): Student_Index = np.random.randint(0,len(Students)) Student = Students[Student_Index] Grade = round(np.random.normal(loc=75,scale=15),1) Grades_Data.append([Student,Grade]) import pandas as pd Grades_df = pd.DataFrame(data=Grades_Data,columns=['Student','Grade']) Grades_df.iloc[0:10]
In java Q2. Write a program that reads grades of type double of eight students that...
In java Q2. Write a program that reads grades of type double of eight students that the user provides. The grades lie between 0 and 10. These grades should be written to a binary file and read from it. The program outputs the highest and lowest grades achieved by students on the screen. The file contains nothing but numbers of type double written to the file with writeDouble.
Write a Java program that will first ask the user how many grades they want to...
Write a Java program that will first ask the user how many grades they want to enter. Then use a do…while loop to populate an array of that size with grades entered by the user. Then sort the array. In a for loop read through that array, display the grades and total the grades. After the loop, calculate the average of those grades and display that average. Specifications Prompt the user for the number of grades they would like to...
Write a C++ program that reads a students name followed by 7 numeric grades from a...
Write a C++ program that reads a students name followed by 7 numeric grades from a file.  Compute the average grade after dropping the  lowest grade.   Assign letter grades via this scale .Please show steps in the comments . A 90 – 100 B 80  --89 C 70 –79 D 60 -69 F 0  - 59 Input format: Sam 100 90 87 23 12 67 95 Mary 30 20 90 90 90 90 88 Mark 80 90 80 80 90 87 100 End of file...
This policy ensures that all students in grades one to nine are physically active for at...
This policy ensures that all students in grades one to nine are physically active for at least thirty minutes each day through activities organized by the school (Alberta, 2020). Being active is being healthy. As was mentioned in the Dr. Christine Kennedy’s article schools have the potential to help children develop lifelong, healthy eating patterns and encourage physical activity; research supports school-based interventions to increase physical activity and decrease obesity (Kennedy, 2010). Giving the kids an opportunity to have an...
Using python code Developed a program to get students homework, midterm, and final exam grades and...
Using python code Developed a program to get students homework, midterm, and final exam grades and compute their average grades display average grade as a number and give them letter gardes. For this homework, I would like you to modify your to do the following. Student grades MUST be between 0 and 100. If students input any number that is not in this range , program must keep asking to enter the correct number. Once student input correct grade, program...
Instructions: Write a program to calculate students’ average test scores and their grades. You may assume...
Instructions: Write a program to calculate students’ average test scores and their grades. You may assume the following input data: Johnson 85 83 77 91 76 Aniston 80 90 95 93 48 Cooper 78 81 11 90 73 Gupta 92 83 30 69 87 Blair 23 45 96 38 59 Clark 60 85 45 39 67 Kennedy 77 31 52 74 83 Bronson 93 94 89 77 97 Sunny 79 85 28 93 82 Smith 85 72 49 75 63...
A school states that average tuition of their training program for various certifications taught there is...
A school states that average tuition of their training program for various certifications taught there is $995 with a standard deviation of $100. You are not sure which course to take and just decided to enroll in a certificate course at random. What is the probability that the tuition for the course is between $900 and $1050? You plan to register for 9 certifications. What is the probability that the average price of certifications is between $900 and $1050?
A school states that average tuition of their training program for various certifications taught there is...
A school states that average tuition of their training program for various certifications taught there is $995 with a standard deviation of $100. You are not sure which course to take and just decided to enroll in a certificate course at random. What is the probability that the tuition for the course is between $900 and $1050? You plan to register for 9 certifications. What is the probability that the average price of certifications is between $900 and $1050?
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT