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Solved: Normal Distributions. Answer the given questions

Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola ISBN: 9780321836960 18

Solution for problem 12BSC Chapter 2.2

Elementary Statistics | 12th Edition

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Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola

Elementary Statistics | 12th Edition

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Problem 12BSC

 

Normal Distributions. Answer the given questions which are related to normal distributions.

Identifying the Distribution Does the frequency distribution given in Exercise appear to have a normal distribution? Explain.

Exercise

identify the class width, class midpoints, and class boundaries for the given frequency distribution. The frequency distributions are based on real data from Appendix B.

Step-by-Step Solution:
Step 1 of 3

Problem 12BSC

Answer:

Step1 of 3:

We have,

CI

frequency

50-59

4

60-69

10

70-79

25

80-89

43

90-99

26

100-109

8

110-119

3

120-129

2

Step2 of 3:

We need to check the frequency distribution given in Exercise appear to have a normal distribution? Explain.

Step3 of 3:

A frequency histogram is obtained by using Excel and steps are as follows

Enter the given data in Excel sheet

select...

Step 2 of 3

Chapter 2.2, Problem 12BSC is Solved
Step 3 of 3

Textbook: Elementary Statistics
Edition: 12
Author: Mario F. Triola
ISBN: 9780321836960

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Solved: Normal Distributions. Answer the given questions

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