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Are the NAEP U.S. history scores approximately Normal? In

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card | 8th Edition | ISBN: 9781464158933 | Authors: David S. Moore, George P. McCabe, Bruce A. Craig ISBN: 9781464158933 206

Solution for problem 1.116 Chapter 1

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card | 8th Edition

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Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card | 8th Edition | ISBN: 9781464158933 | Authors: David S. Moore, George P. McCabe, Bruce A. Craig

Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card | 8th Edition

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Problem 1.116

Are the NAEP U.S. history scores approximately Normal? In Exercise 1.113, we assumed that the NAEP U.S. history scores for twelfth-grade students are approximately Normal with the reported mean and standard deviation, N(288, 32). Lets check that assumption. In addition to means and standard deviations, you can find selected percentiles for the NAEP assessments (see previous exercise). For the twelfth-grade U.S. historyscores, the following percentiles are reported:Percentile Score10% 24625% 27650% 29075% 31190% 328Use these percentiles to assess whether or not the NAEPU.S. history scores for twelfth-grade students are approximatelyNormal. Write a short report describing yourmethods and conclusions.

Step-by-Step Solution:
Step 1 of 3

3.1 Ans12) (a) Mean = Sum of all values divided by the number of values. Mean = ∑ x /n = 23/5 = 4.6 In order to calculate the median, we arrange the set of numbers in increasing order: 2 2 3 6 10. As the number of observations are odd, therefore median is the third value which is 3. Median = 3. Mode is the number that occurs most frequently in the given data. In this case, 2 occurs most frequently. So, mode is 2. (b)As per the question, we add 5 to each of the data values. New data set: 7 7 8 11 15. Mean = ∑ x /n = 48/5 = 9.6 In order to calculate the median, we arrange the set of numbers in increasing order: 7 7 8 11 15. As the number of observations are odd, median is the middle value which is the third value in this case. Median = 8. Mode is the number that occurs mos

Step 2 of 3

Chapter 1, Problem 1.116 is Solved
Step 3 of 3

Textbook: Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card
Edition: 8
Author: David S. Moore, George P. McCabe, Bruce A. Craig
ISBN: 9781464158933

This textbook survival guide was created for the textbook: Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card, edition: 8. This full solution covers the following key subjects: . This expansive textbook survival guide covers 17 chapters, and 1719 solutions. The answer to “Are the NAEP U.S. history scores approximately Normal? In Exercise 1.113, we assumed that the NAEP U.S. history scores for twelfth-grade students are approximately Normal with the reported mean and standard deviation, N(288, 32). Lets check that assumption. In addition to means and standard deviations, you can find selected percentiles for the NAEP assessments (see previous exercise). For the twelfth-grade U.S. historyscores, the following percentiles are reported:Percentile Score10% 24625% 27650% 29075% 31190% 328Use these percentiles to assess whether or not the NAEPU.S. history scores for twelfth-grade students are approximatelyNormal. Write a short report describing yourmethods and conclusions.” is broken down into a number of easy to follow steps, and 97 words. Since the solution to 1.116 from 1 chapter was answered, more than 1055 students have viewed the full step-by-step answer. Introduction to the Practice of Statistics: w/CrunchIt/EESEE Access Card was written by and is associated to the ISBN: 9781464158933. The full step-by-step solution to problem: 1.116 from chapter: 1 was answered by , our top Statistics solution expert on 01/03/18, 09:20PM.

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