Journal of Probability and Statistics / 2013 / Article / Tab 1

Research Article

Confidence Intervals for the Coefficient of Variation in a Normal Distribution with a Known Population Mean

Table 1

The values of and for the shortest-length confidence interval for .

dfConfidence levels
0.900.950.99

20.206512.52080.101515.11940.020020.8264
30.565413.15320.344915.58970.114020.9856
41.020014.18000.691816.57350.293721.8371
51.535215.34981.109217.74320.546122.9867
62.093016.58071.577618.99540.856724.2618
72.682817.83912.085120.28631.214325.6017
83.298119.10992.623521.59531.610726.9749
93.934320.38483.187422.91182.039428.3643
104.588321.65983.772924.23032.495829.7602
115.257322.93254.376825.54762.976031.1580
125.939724.20164.996726.86183.477132.5543
136.633725.46665.630828.17173.996833.9474
147.338226.72696.277629.47694.532935.3358
158.052127.98256.935730.77705.084036.7192
168.774529.23347.604232.07205.648738.0968
179.504730.47968.282033.36196.225639.4688
1810.242131.72128.968534.64676.813940.8347
1910.986132.95859.662935.92667.412642.1952
2011.736234.191510.364737.20168.020943.5498
2112.491935.420511.073338.47208.638344.8989
2213.253036.645511.788239.73799.264046.2426
2314.019137.866812.509240.99959.897647.5810
2414.789939.084413.235742.257010.538548.9144
2515.565040.298613.967543.510511.186450.2428
2616.344341.509514.704344.760111.840851.5665
2717.127542.717115.445846.006012.501452.8856
2817.914443.921716.191747.248313.167854.2002
2918.704945.123416.941948.487213.839755.5107
3019.498746.322217.696149.722914.517056.8169
4027.591958.175525.423361.921721.533169.6808
5035.901269.834233.408573.892028.887982.2534
6044.366181.347941.579485.691436.486394.6063
7052.950192.748749.892397.357344.2711106.7867
8061.6290104.058458.3183108.915352.2044118.8272
9070.3860115.292566.8374120.383960.2597130.7514
10079.2086126.462875.4347131.776768.4177142.5771
150124.0372181.6128119.2737187.9079110.3262200.6194
200169.6646235.9748164.0642243.1025153.4834257.4375
250215.8057289.8273209.4667297.6910197.4440313.4620
300262.3132343.3155255.3057351.8461241.9776368.9185

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