Distribution Free hypothesis Testing: One Sample Wilcoxon Signed Rank Test Example (1)
Автор: Mrs E Hodgetts
Загружено: 2021-05-24
Просмотров: 1225
Описание:
The median lifetime of a certain brand of battery is claimed to be 300 hours. A random sample of 15 of these batteries is taken and their lifetimes recorded
342 393 257
339 306 278
265 216 402
190 302 289
312 249 178
Use a Wilcoxon signed-ranked test at the 5% significance level to test whether the claim that the median is 300 hours is justified
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