ISSN:0266-4763    

DOI:10.1080/02664768700000001

出版商:Carfax Publishing Company    

年代:1987

数据来源: Taylor

摘要:

In this study, the distribution of CTV in citrus groves in Israel is considered using the data gathered from the CTV survey during the period 1979–1985. A theoretical curve is fitted to the distribution of the number of infected trees in infected plots which contain at least a single infected tree. Some recommendations for improving the sampling method for locating infected plots with a low incidence of infection are presented.

ISSN:0266-4763    

DOI:10.1080/02664768700000002

出版商:Carfax Publishing Company    

年代:1987

数据来源: Taylor

摘要:

SUMMARY Y is a linear regression on a variable X; X is fixed and all its sample values are observed. Y, on the other hand, has some sample values missing. This work outlines a maximum likelihood (ml) procedure that tries to adjust for bias due to non-random missingness; here non-randomness is specified by a logistic distribution. The ml procedure is implemented via two iterative technologies, namely the EM algorithm (of Dempster, Laird & Rubin, 1977) and the Newton-Raphson method. Data from a dialysis study are used to illustrate our estimation procedure, and results show that the ml procedure is quite effective in adjusting for bias.

ISSN:0266-4763    

DOI:10.1080/02664768700000003

出版商:Carfax Publishing Company    

年代:1987

数据来源: Taylor

ISSN:0266-4763    

DOI:10.1080/02664768700000004

出版商:Carfax Publishing Company    

年代:1987

数据来源: Taylor

摘要:

Three very simple algorithms are presented that facilitate calculation of the analysis of variance for data from any block design. The first provides the sums of squares for treatments and error. The second calculates the treatment means with adjustment for any non-orthogonality and also gives the degrees of freedom. The third gives the constant needed to derive the variance of an unconfounded contrast from the error mean square. All depend upon sweeping and are therefore iterative. They are intended for use with experiments that have suffered damage and therefore no longer conform to any recognised design. They could also be useful when an experiment is conducted under such physical constraints that it has been necessary to adopt some unconventional design. Another use could arise when assessing students (treatments) who opt for different papers (blocks) in an examination, the papers being possibly of varying difficulty.

ISSN:0266-4763    

DOI:10.1080/02664768700000005

出版商:Carfax Publishing Company    

年代:1987

数据来源: Taylor

摘要:

The rules of American football favor the strategic placement of the 11 players per team making the identification of statistical tendencies a particularly useful capability. Gambling on American football games is explained. Several automated prediction techniques are discussed and compared, including least squares, weighted least squares, James-Stein, and Harville. A more data-intensive approach is discussed. That approach has coaching implications as well as predictive ability.

ISSN:0266-4763    

DOI:10.1080/02664768700000006

出版商:Carfax Publishing Company    

年代:1987

数据来源: Taylor

摘要:

In this study, the variance of mean fraction nonconformance under the exact lot quality distribution with first order dependence is examined. The extent of the validity of binomial assumption with respect to the exact distribution in constructing the p-charts for dependent production processes is investigated and it is shown that neglect of dependence for small lot sizes may cause bias in the width of the area between the control limits. An approximate lot quality distribution with great versatility is proposed and is used for correcting the bias due to dependence in p-charts.

ISSN:0266-4763    

DOI:10.1080/02664768700000007

出版商:Carfax Publishing Company    

年代:1987

数据来源: Taylor

ISSN:0266-4763    

DOI:10.1080/02664768700000008

出版商:Carfax Publishing Company    

年代:1987

数据来源: Taylor

摘要:

A non-normal class of distribution (Edgeworth Series distribution) function in three and four parameters has been considered for dose-binary response relationship. This class accounts for the non-normality (expressed in terms of skewness and kurtosis) present in the relationship in addition to the usual location and scale parameters (generally considered by two parameter models). We present the maximum likelihood method of estimation of the parameters and test of probit (normal distribution) hypothesis. Edgeworth Series distribution when fitted to the data of Milicer & Szczotka (1966) showed an excellent closeness to the observed values, significant improvement over probit and logit fit (Aranda-Ordaz, 1981), and better fit compared to Prentice (1976) model.

ISSN:0266-4763    

DOI:10.1080/02664768700000009

出版商:Carfax Publishing Company    

年代:1987

数据来源: Taylor

ISSN:0266-4763    

DOI:10.1080/02664768700000010

出版商:Carfax Publishing Company    

年代:1987

数据来源: Taylor