https://community.jmp.com/t5/Discussions/How-do-I-compare-mean-mortality-rates/m-p/773596#M95492 <P>I performed an experiment in which I subjected a few groups of insects to different treatments and then observed how long they survived. I want to see if there is a significant difference in the times it took for each group to reach 50% mortality. I was told a wilcoxon test is the best way to do this. I already have survival curves, I just don't know how to compare the means. How do I approach this?</P> Wed, 17 Jul 2024 14:05:02 GMT DeepModeSteer94 2024-07-17T14:05:02Z https://community.jmp.com/t5/Discussions/How-do-I-compare-mean-mortality-rates/m-p/773596#M95492 <P>I performed an experiment in which I subjected a few groups of insects to different treatments and then observed how long they survived. I want to see if there is a significant difference in the times it took for each group to reach 50% mortality. I was told a wilcoxon test is the best way to do this. I already have survival curves, I just don't know how to compare the means. How do I approach this?</P> Wed, 17 Jul 2024 14:05:02 GMT https://community.jmp.com/t5/Discussions/How-do-I-compare-mean-mortality-rates/m-p/773596#M95492 DeepModeSteer94 2024-07-17T14:05:02Z https://community.jmp.com/t5/Discussions/How-do-I-compare-mean-mortality-rates/m-p/773637#M95494 <P>This sounds like a Reliability scenario to me. My approach would be to first use the Reliability...Life Distribution platform to understand the distribution of in insect curves, then use the Fit Life by X platform (specifying the distribution learned earlier) to understand the effects of the different treatments. This platform also includes the Wilcoxon Group Homogeneity Test and profilers.</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Jed_Campbell_0-1721229047945.png" style="width: 999px;"><img src="https://community.jmp.com/t5/image/serverpage/image-id/66255iC72CEC23857F6480/image-size/large?v=v2&amp;px=999" role="button" title="Jed_Campbell_0-1721229047945.png" alt="Jed_Campbell_0-1721229047945.png" /></span></P> <P>&nbsp;</P> <P>&nbsp;</P> Wed, 17 Jul 2024 15:11:03 GMT https://community.jmp.com/t5/Discussions/How-do-I-compare-mean-mortality-rates/m-p/773637#M95494 Jed_Campbell 2024-07-17T15:11:03Z