Question
A researcher sprayeda random sample of 100butterflies with a particular method and observed their survival times. The mean and standard deviation were foundto be 18.3
A researcher sprayeda random sample of 100butterflies with a particular method and observed their survival times. The mean and standard deviation were foundto be 18.3 and 5.2 days, respectively. Use these information to construct a 99%confidence intervalfor the true mean survival time. What is the lower bound of this confidence interval? (Answer with two decimal)
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A First Course In Probability
Authors: Sheldon Ross
10th Edition
0134753119, 978-0134753119
