Essentials of Statistics (6th Edition)
6th Edition
ISBN: 9780134685779
Author: Mario F. Triola
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 1CQQ
Cookies Refer to the accompanying frequency distribution that summarizes the numbers of chocolate chips found in each cookie in a sample of Chips Ahoy regular chocolate chip cookies (from Data Set 28 “Chocolate Chip Cookies” in Appendix B). What is the class width? Is it possible to identify the original data values?
Expert Solution & Answer
To determine
To find: The class width in the frequency distribution.
To identify: The original values in the frequency distribution.
Answer to Problem 1CQQ
The class width for each class is 3.
No, it is not possible to identify the original data values in the frequency distribution table.
Explanation of Solution
Given info:
The data shows the frequency distribution for the number of chocolate chips in each cookie from a sample of cookies.
Calculation:
Formula for finding the class width:
From the given table, the maximum data value is 32, the minimum data value is 18 and the number of classes is 5. Substitute these values in the class width formula.
Thus, the class width for each class is 3.
Justification:
No, it is impossible to identify the original data values because only the frequency distribution is given.
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Chapter 2 Solutions
Essentials of Statistics (6th Edition)
Ch. 2.1 - McDonalds Dinner Service Times Refer 10 the...Ch. 2.1 - McDonalds Dinner Service Times Refer to the...Ch. 2.1 - Relative Frequency Distribution Use percentages to...Ch. 2.1 - Whats Wrong? Heights of adult males are known to...Ch. 2.1 - In Exercise 58, identify the class width, class...Ch. 2.1 - In Exercises 58, identify the class width, class...Ch. 2.1 - In Exercises 58, identify the class width, class...Ch. 2.1 - In Exercises 58, identify the class width, class...Ch. 2.1 - Normal Distributions. In Exercises 9 and 10, using...Ch. 2.1 - Normal Distributions. In Exercises 9 and 10, using...
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