Find the standard deviation, s, of sample data summarized in the frequency distribution table 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, 11.1. (*)]-[Z«•»]* n(n-1) Interval 30-39 40-49 50-59 60-69 70-79 80-89 90-99 Frequency 8 3 15 31 37 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, 11.1? O A. The computed value is not significantly different from the given value. OB. The computed value is significantly less than the given value. OC. The computed value is significantly greater than the given value. Help me solve this View an example Get more help - Clear all Final check

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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Find the standard deviation, s, of sample data summarized in the frequency distribution table 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, 11.1.
(*)]-[Z«•»]*
n(n- 1)
Interval
30-39
40-49
50-59
60-69
70-79
80-89
90-99
Frequency
8
3
15
31
37
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,
11.1?
O A. The computed value is not significantly different from the given value.
OB. The computed value is significantly less than the given value.
OC. The computed value is significantly greater than the given value.
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6.
Transcribed Image Text:Find the standard deviation, s, of sample data summarized in the frequency distribution table 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, 11.1. (*)]-[Z«•»]* n(n- 1) Interval 30-39 40-49 50-59 60-69 70-79 80-89 90-99 Frequency 8 3 15 31 37 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, 11.1? O A. The computed value is not significantly different from the given value. OB. The computed value is significantly less than the given value. OC. The computed value is significantly greater than the given value. Help me solve this View an example Get more help - Clear all Final check 9% 6.
Expert Solution
Step 1

Given data :


classes Frequency
30-39 1
40-49 3
50-59 8
60-69 3
70-79 15
80-89 31
90-99 37

 

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