Mathematics
Scientific paper
Nov 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983esasp.201...43r&link_type=abstract
In ESA Statist. Methods in Astron. p 43-44 (SEE N84-19196 09-89)
Mathematics
Significance, Solar Oscillations, Superposition (Mathematics), Time Measurement, Distribution Moments, Fourier Series, Time Series Analysis
Scientific paper
Means of evaluating the statistical significance of data treated by the superposed epoch method are discussed. It is shown that data quasi-persistency affects the significance criterion more strongly than is commonly assumed. Preliminary averaging of epochs and the use of significance criterion based on Fourier amplitudes permits the quasi-persistency of data to be ignored. The results of a search for quasi-persistency in the 160m.01 period oscillations of the Sun are presented. No quasi-persistency is found. The hypothesis that the amplitude of 160m.01 oscillations is the result of random sequentially independent and normally distributed data, is rejected with a significance level of the order of 10 to the minus 17th to minus 15th power.
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