scholarly journals On Finding the Upper Confidence Limit for a Binomial Proportion when Zero Successes are Observed

2017 ◽  
Vol 08 (02) ◽  
Author(s):  
Courtney E McCracken ◽  
Stephen W Looney
Keyword(s):  
Confidence Limit ◽  
Upper Confidence Limit ◽  
Binomial Proportion

The Experiment for the Fracture Toughness of the Compound Bioceramic and the Analysis for the Confidence Level of its Reliability

2010 ◽  
Vol 44-47 ◽  
pp. 3003-3010
Author(s):  
Shi Lian Xu ◽  
Rui Hong Wang ◽  
Ruo Qi Li ◽  
Ren Ping Xu
Keyword(s):  
Experimental Data ◽  
Fracture Toughness ◽  
Confidence Level ◽  
Confidence Limit ◽  
Limit Curve ◽  
Medical Treatments ◽  
Manufacturing Method ◽  
Upper Confidence Limit ◽  
Lower Confidence ◽  
Two Parameter

The brittle is crippling the application of bioceramic. The compound bioceramic is a new biomaterial being widely applied in medical treatments and its fracture toughness is an important mechanical behaviors. In this paper, we introduce the manufacturing method of the compound bioceramic and experiment facilities for its fracture toughness, investigate its probability distribution for the experimental data and conduct the test for fit. We conclude that the experimental data for the toughness fracture of the compound bioceramic obey the two-parameter Weibull distribution, introduce the analyzing method for the upper confidence limit curve and lower confidence limit curve and study the reliability and confidence level of the fracture toughness of the compound bioceramic.

Heritable Fraction of Unilateral Wilms Tumor

PEDIATRICS ◽  
1988 ◽  
Vol 81 (1) ◽  
pp. 147-149
Author(s):  
Frederick P. Li ◽  
Wick R. Williams ◽  
Kathreen Gimbrere ◽  
Francoise Flamant ◽  
Daniel M. Green ◽  
...  
Keyword(s):  
Genetic Counseling ◽  
Maximum Likelihood ◽  
Upper Bound ◽  
Maximum Likelihood Estimate ◽  
Confidence Limit ◽  
Wilms Tumor ◽  
Upper Confidence Limit ◽  
Familial Form ◽  
Long Term Survivors

Heritability of the unilateral-sporadic (non-familial) form of Wilms tumor was examined in the offspring of 96 long-term survivors of the neoplasm. No Wilms tumor has developed in any of the 179 offspring of these patients. The maximum likelihood estimate of a hereditary Wilms tumor in our patients is zero and the corresponding 95% upper confidence limit ranges between 0.06 and 0.11, depending on penetrance. Among their offspring, the 95% upper bound of the risk of Wilms tumor is 0.02. These figures can be applied in genetic counseling of other survivors of unilateral-sporadic Wilms tumor.

scholarly journals AlIozyme Uniformity Within and Variation Between Races of the Colonizing Species Xanthium Strumarium L. (Noogoora Burr)

1978 ◽  
Vol 31 (3) ◽  
pp. 283 ◽  
Author(s):  
GF Moran ◽  
DR Marshall
Keyword(s):  
Genetic Differentiation ◽  
Genetic Polymorphisms ◽  
Confidence Limit ◽  
Enzyme Level ◽  
Outcrossing Rate ◽  
The Other ◽  
Xanthium Strumarium ◽  
Marked Contrast ◽  
Colonizing Species ◽  
Upper Confidence Limit

The degree of polymorphism at 13 enzymic loci was tested in 12 populations of Xanthium strumarium representing all four naturalized races of this species in Australia. The races are X. chinense, X. italicum, X. pennsylvanicum and X. cavanillesii. Very little variation was found within races of X. strumarium at the loci studied. In marked contrast to this lack of intraracial variation there was considerable interracial genetic differentiation at several loci. It is concluded that genetic polymorphisms and hence populational buffering, at least at the enzyme level, has been of little significance in the adaptation of this species during its colonization of Australian environments. The observed outcrossing rate in X. italicum was zero (inestimable in the other races) with an upper confidence limit of 10-12 %, confirming previous observations that X. strumarium is predominately self-pollinated.

Chlorsulfuron Persistence and Response of Nine Rotational Crops in Alkaline Soils of Southern Alberta

1990 ◽  
Vol 4 (3) ◽  
pp. 543-548 ◽  
Author(s):  
James R. Moyer ◽  
Rudy Esau ◽  
Gerald C. Kozub
Keyword(s):  
Organic Matter ◽  
Soil Ph ◽  
Confidence Limit ◽  
Yield Loss ◽  
Crop Yields ◽  
Alkaline Soils ◽  
Upper Confidence Limit ◽  
Southern Alberta ◽  
Significant Yield

Chlorsulfuron was applied to wheat at rates of 0, 10, 20, and 40 g ai ha-1in three locations at Lethbridge and Brooks between 1980 and 1984. The soil pH and organic matter contents at Lethbridge and Brooks were 8.0 and 2.1% and 7.4 and 3.0%, respectively. Rotational crops were seeded for up to 7 yr after chlorsulfuron application. The criteria used to indicate when susceptible crops will grow safely were no significant yield loss at the 40 g ha-1rate and the magnitude of the upper confidence limit for this difference. The following times after application before crop yields were not affected were required at Lethbridge: barley, 2 yr; canola, 3 yr; peas, beans, 4 yr; flax and potatoes, 5 yr; alfalfa and sugarbeets, 6 yr; and lentils at least 7 yr. The effect of chlorsulfuron residues in the soil on rotational crops appeared to be similar at Brooks and at Lethbridge. Estimated chlorsulfuron concentrations were related to the tolerance of rotational crops.

Reliability in Measuring Diet Overlap

1983 ◽  
Vol 40 (3) ◽  
pp. 347-351 ◽  
Author(s):  
Richard K. Wallace ◽  
John S. Ramsey
Keyword(s):  
Sample Size ◽  
Confidence Limit ◽  
High Reliability ◽  
Micropterus Salmoides ◽  
Lepomis Macrochirus ◽  
Diet Overlap ◽  
Volume Percentage ◽  
Upper Confidence Limit ◽  
Menidia Beryllina ◽  
Collection Date

Intraspecific diet overlaps were calculated for young-of-the-year largemouth bass (Micropterus salmoides), juvenile bluegills (Lepomis macrochirus), and inland silversides (Menidia beryllina) by randomly dividing collections of each species into two sets, measuring the diet (average of the volume percentage) and calculating the diet overlap by Schoener's method. The randomization process and overlap calculation were repeated 30 times and an upper confidence limit (95%) for intraspecific overlap was determined. Upper confidence limits of intraspecific overlap were generally below the 100% overlap expected if diets were adequately characterized. Intraspecific overlap varied with collection date, fish species, and size of sample. Increasing sample size did not increase intraspecific overlap when the larger sample included a wider size range of fish. The upper confidence limit of intraspecific overlap can be used as a measure of reliability for interspecific diet overlap calculations. We suggest that intraspecific overlaps approaching 100% indicate high reliability for the corresponding interspecific overlap value. The intraspecific overlap is most useful in judging the reliability of interspecific overlap when sample size is limited.Key words: diet overlap, intraspecific overlap, interspecific overlap

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