Find the standard deviation, s, of sample data summarized in the frequency distribution table given below by using the formula below, where x represents the class midpoint, f represents the class frequency, and n represents the total number of sample values. Also, compare the computed standard deviation to the standard deviation obtained from the original list of data values, 9.0. S= n[Σ(f•x²)]-[Σ(f•x)]² n(n-1) Interval Frequency 20-29 4 30-39 16 40-49 37 O A. The computed value is significantly less than the given value. O B. The computed value is significantly greater than the given value. OC. The computed value is not significantly different from the given value. 50-59 17 60-69 5 70-79 4 Standard deviation = (Round to one decimal place as needed.) Consider a difference of 20% between two values of a standard deviation to be significant. How does this computed value compare with the given standard deviation, 9.0?
Find the standard deviation, s, of sample data summarized in the frequency distribution table given below by using the formula below, where x represents the class midpoint, f represents the class frequency, and n represents the total number of sample values. Also, compare the computed standard deviation to the standard deviation obtained from the original list of data values, 9.0. S= n[Σ(f•x²)]-[Σ(f•x)]² n(n-1) Interval Frequency 20-29 4 30-39 16 40-49 37 O A. The computed value is significantly less than the given value. O B. The computed value is significantly greater than the given value. OC. The computed value is not significantly different from the given value. 50-59 17 60-69 5 70-79 4 Standard deviation = (Round to one decimal place as needed.) Consider a difference of 20% between two values of a standard deviation to be significant. How does this computed value compare with the given standard deviation, 9.0?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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![Find the standard deviation, s, of sample data summarized in the frequency distribution table given below by using the formula below, where x represents the class midpoint, f
represents the class frequency, and n represents the total number of sample values. Also, compare the computed standard deviation to the standard deviation obtained from the
original list of data values, 9.0.
S=
|n[Σ(f•x?)]-[Σ«•x]°
n(n-1)
Interval
Frequency
20-29
4
30-39
16
40-49
37
O A. The computed value is significantly less than the given value.
O B. The computed value is significantly greater than the given value.
O C. The computed value is not significantly different from the given value.
50-59
17
60-69
5
70-79
4
Standard deviation =
(Round to one decimal place as needed.)
Consider a difference of 20% between two values of a standard deviation to be significant. How does this computed value compare with the given standard deviation, 9.0?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F91037c8b-b7cf-4ac1-b26c-e7ccfdb1caa1%2F5cd9cf3e-3a79-4012-8989-e7340e0130be%2F5pkp8gxc_processed.png&w=3840&q=75)
Transcribed Image Text:Find the standard deviation, s, of sample data summarized in the frequency distribution table given below by using the formula below, where x represents the class midpoint, f
represents the class frequency, and n represents the total number of sample values. Also, compare the computed standard deviation to the standard deviation obtained from the
original list of data values, 9.0.
S=
|n[Σ(f•x?)]-[Σ«•x]°
n(n-1)
Interval
Frequency
20-29
4
30-39
16
40-49
37
O A. The computed value is significantly less than the given value.
O B. The computed value is significantly greater than the given value.
O C. The computed value is not significantly different from the given value.
50-59
17
60-69
5
70-79
4
Standard deviation =
(Round to one decimal place as needed.)
Consider a difference of 20% between two values of a standard deviation to be significant. How does this computed value compare with the given standard deviation, 9.0?
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