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Original Research
Testing for significant changes in popularity
South African Journal of Business Management | Vol 19, No 3 | a978 |
DOI: https://doi.org/10.4102/sajbm.v19i3.978
| © 2018 Copyright Status: Not provided. Contact Holding Institution to verify copyright status. Rights Holder: University of Stellenbosch
Submitted: 19 October 2018 | Published: 30 September 1988
Submitted: 19 October 2018 | Published: 30 September 1988
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Denny H. Meyer, Department of Statistics, University of the Witwatersrand, South AfricaFull Text:
PDF (142KB)Abstract
A graphic procedure for determining whether a statistically significant change in television ratings has occurred is proposed. The method takes into account the fact that the ratings are generated from the same sample of viewers rather than from two independent samples. In addition it incorporates the effect of sample size. The method is applicable for the analysis of all market research data collected by such panel methods.
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