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|
DESCRIPTIVE STATISTICS: GROUPED DATA |
|
Confidence
Level |
99.900% |
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Time-to-Failure for Components |
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Significance
Level |
0.1% |
|
Grouped
data for histogram from Dimitri Kececioglu, Reliability
Engineering Handbook, Vol. 1 (Englewood
Cliffs, NJ: Prentice Hall, Inc.), pp. 108-139. |
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|
t(α/2,n-1) |
3.334488608 |
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Observations |
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Group Limits |
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|
Number of
Observations |
225 |
|
Minimum |
425.5 |
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|
Number of
Groups |
10 |
|
Maximum |
455.5 |
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|
Optimal
Number of Groups [Sturges' Rule] |
8.813781191 |
|
Range |
30 |
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|
Interval Midpoint |
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Group Frequencies |
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|
Mean |
436.7866667 |
|
Minimum |
2 |
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|
Median |
436.4326923 |
|
Maximum |
52 |
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Mode |
436.1071429 |
|
Range |
50 |
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|
Geometric
Mean |
436.7505337 |
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|
Harmonic
Mean |
436.7145101 |
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Population |
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Sample |
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|
Population
Standard Deviation |
5.626824642 |
|
Sample Standard Deviation |
5.639370532 |
|
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|
Population
Variance |
31.66115556 |
|
Sample Variance |
31.8025 |
|
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|
Coefficient
of Variation |
0.012882318 |
|
Coefficient of Variation |
15.03344486 |
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|
Standard
Error of the Mean |
0.375121643 |
|
Standard Error of the Mean |
0.375958035 |
|
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|
99.9% Confidence Interval for Population Mean |
|
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|
99.9% Confidence Interval for Sample Mean |
|
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|
Lower
Limit |
L |
435.5358278 |
|
Lower
Limit |
L |
435.5330389 |
|
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|
Upper
Limit |
U |
438.0375055 |
|
Upper
Limit |
U |
438.0402945 |
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|
Quartiles,
Deciles, Percentiles |
|
|
99.9%
Confidence Interval for Population Mean |
|
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|
Symmetry |
|
|
Quartiles,
Deciles, Percentiles |
|
|
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|
Skewness |
0.377390853 |
|
Lowest |
Q0 |
D0 |
P0 |
425.5 |
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|
Standard
Error of Skewness (SES) |
0.16222464 |
|
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|
P1 |
425.9821429 |
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|
Skewness
Test Statistic (Skewness/SES) |
2.326347301 |
|
|
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|
P5 |
427.9107143 |
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|
Distribution's
Deviation from Symmetry |
Extended to Right |
|
|
|
D1 |
P10 |
429.4107143 |
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|
Peakedness |
|
|
Q1 |
|
P25 |
432.6554054 |
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|
Kurtosis |
2.900213731 |
|
Median |
Q2 |
D5 |
P50 |
436.4326923 |
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|
Standard
Error of Kurtosis (SEK) |
0.323061078 |
|
|
Q3 |
|
P75 |
440.4038462 |
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|
Excess
Kurtosis |
-0.099786269 |
|
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|
D9 |
P90 |
444.5263158 |
|
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|
Kurtosis
Test Statistic (Excess Kurtosis/SEK) |
-0.308877409 |
|
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|
P95 |
446.3026316 |
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|
Shape of
Distribution's Peak |
Mesokurtic |
|
|
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|
P99 |
452.125 |
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|
Distribution's
Degree of Peakedness |
Near Normal |
|
Highest |
Q4 |
D10 |
P100 |
455.5 |
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|
Inter-Quartile Range |
Q3-Q1 |
7.748440748 |
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|
Correlation |
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|
Correlation
(Pearson) CORR(τ,O) |
-0.602197354 |
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|
Population Moments |
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|
Bar Lengths as % of Maximum |
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|
m1 |
-2.34953E-14 |
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|
m2 |
31.66115556 |
|
Confidence
Inteval for Mean |
100% |
|
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|
m3 |
67.23284859 |
|
Percentiles |
15% |
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|
m4 |
2907.257687 |
|
Mode |
100% |
|
|
Copyright © 2010 by Macroknow Inc. All Rights
Reserved. |
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