State null and alternative hypotheses for the first type of cell. At what level can you reject the null hypothesis? Is it significant?
The survival time for one type of cell in culture is exponentially distributed with a mean of 200 h. After applying a new treatment, one cell lasts 800 h. For a second type of cell, the survival time is exponentially distributed with a mean of 100 h. After applying the same new treatment, one cell lasts 30 h.