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Modified Battery Life Analysis by Nayama Nayama is a document available to read on EtoBox.
The mean life of batteries from a sample of 20 modified batteries was tested against the original mean battery life of 305 days. The modified batteries had a mean life of 311 days with a standard deviation of 12 days. Using a t-test, the null hypothesis that the modification did not increase battery life was tested against the alternative that it did increase battery life. The calculated t value of 2.24 was greater than the critical value of 1.729, so the null hypothesis was rejected, indicating that the mo
- Author
- Nayama Nayama
- Language
- EN